Inleiding en herhaling (Page 4/4)

Page 4 / 4

Ons kan die massa van brode bepaal en dit gebruik om vas te stel of verbruikers waarde vir hulle geld kry. 'n Ongemerkte brood moet 800g weeg. Vir een week is 10 verskillende brode by 'n sekere winkel elke dag geweeg. Die data word getoon in [link] .

Massas (in g) van 10 verskillende brode, vanaf dieselfde vervaardiger, bepaal by dieselfde winkel oor 'n tydperk van een week

Maandag	Dinsdag	Woensdag	Donderdag	Vrydag	Saterdag	Sondag
802.39	787.78	815.74	807.41	801.48	786.59	799.01
796.76	798.93	809.68	798.72	818.26	789.08	805.99
802.50	793.63	785.37	809.30	787.65	801.45	799.35
819.59	812.62	809.05	791.13	805.28	817.76	801.01
801.21	795.86	795.21	820.39	806.64	819.54	796.67
789.00	796.33	787.87	799.84	789.45	802.05	802.20
788.99	797.72	776.71	790.69	803.16	801.24	807.32
808.80	780.38	812.61	801.82	784.68	792.19	809.80
802.37	790.83	792.43	789.24	815.63	799.35	791.23
796.20	817.57	799.05	825.96	807.89	806.65	780.23

Datastel 4: temperature wêreldwyd

Die wêreldwye gemiddelde temperature van 1861 tot 1996 word in [link] getoon. Die data, verkry by (External Link) , is na temperatuur in grade Celsius omgeskakel.

Wêreldwye gemiddelde temperature van 1861 tot 1996. Tans is daar 'n groot bespreking oor die verandering in weerpatrone en die moontlike verwantskap met besoedeling en kweekhuisgasse.

Jaar	Temperatuur	Jaar	Temperatuur	Jaar	Temperatuur	Jaar	Temperatuur
1861	12.66	1901	12.871	1941	13.152	1981	13.228
1862	12.58	1902	12.726	1942	13.147	1982	13.145
1863	12.799	1903	12.647	1943	13.156	1983	13.332
1864	12.619	1904	12.601	1944	13.31	1984	13.107
1865	12.825	1905	12.719	1945	13.153	1985	13.09
1866	12.881	1906	12.79	1946	13.015	1986	13.183
1867	12.781	1907	12.594	1947	13.006	1987	13.323
1868	12.853	1908	12.575	1948	13.015	1988	13.34
1869	12.787	1909	12.596	1949	13.005	1989	13.269
1870	12.752	1910	12.635	1950	12.898	1990	13.437
1871	12.733	1911	12.611	1951	13.044	1991	13.385
1872	12.857	1912	12.678	1952	13.113	1992	13.237
1873	12.802	1913	12.671	1953	13.192	1993	13.28
1874	12.68	1914	12.85	1954	12.944	1994	13.355
1875	12.669	1915	12.962	1955	12.935	1995	13.483
1876	12.687	1916	12.727	1956	12.836	1996	13.314
1877	12.957	1917	12.584	1957	13.139
1878	13.092	1918	12.7	1958	13.208
1879	12.796	1919	12.792	1959	13.133
1880	12.811	1920	12.857	1960	13.094
1881	12.845	1921	12.902	1961	13.124
1882	12.864	1922	12.787	1962	13.129
1883	12.783	1923	12.821	1963	13.16
1884	12.73	1924	12.764	1964	12.868
1885	12.754	1925	12.868	1965	12.935
1886	12.826	1926	13.014	1966	13.035
1887	12.723	1927	12.904	1967	13.031
1888	12.783	1928	12.871	1968	13.004
1889	12.922	1929	12.718	1969	13.117
1890	12.703	1930	12.964	1970	13.064
1891	12.767	1931	13.041	1971	12.903
1892	12.671	1932	12.992	1972	13.031
1893	12.631	1933	12.857	1973	13.175
1894	12.709	1934	12.982	1974	12.912
1895	12.728	1935	12.943	1975	12.975
1896	12.93	1936	12.993	1976	12.869
1897	12.936	1937	13.092	1977	13.148
1898	12.759	1938	13.187	1978	13.057
1899	12.874	1939	13.111	1979	13.154
1900	12.959	1940	13.055	1980	13.195

Datastel 5: prys van petrol

Die prys van petrol in Suid-Afrika vanaf Augustus 1998 tot Julie 2000 word in [link] getoon.

Petrolpryse in Suid-Afrika vanaf Augustus 1998 tot Julie 2000

Datum	Prys (R/l)
Augustus 1998	R 2.37
September 1998	R 2.38
Oktober 1998	R 2.35
November 1998	R 2.29
Desember 1998	R 2.31
Januarie 1999	R 2.25
Februarie 1999	R 2.22
Maart 1999	R 2.25
April 1999	R 2.31
Mei 1999	R 2.49
Junie 1999	R 2.61
Julie 1999	R 2.61
Augustus 1999	R 2.62
September 1999	R 2.75
Oktober 1999	R 2.81
November 1999	R 2.86
Desember 1999	R 2.85
Januarie 2000	R 2.86
Februarie 2000	R 2.81
Maart 2000	R 2.89
April 2000	R 3.03
Mei 2000	R 3.18
Junie 2000	R 3.22
Julie 2000	R 3.36

Groepering van data

Een van die eerste stappe in die verwerking van 'n groot stel rou data is om die datawaardes te rangskik in 'n kleiner aantal groepe en dan te tel hoeveel daar van elke datawaarde in elke groep is. Die groepe is gewoonlik gebaseer op een of ander interval van datawaardes, sodat datawaardes wat binne 'n sekere interval val, saamgegroepeer word. Die gegroepeerde data word dikwels grafies of in 'n frekwensietabel uitgebeeld. Frekwensie beteken "hoeveel keer kom iets voor".

Groepeer die elemente van Datastel 1 om te bepaal hoeveel keer die muntstuk op kop land en hoeveel keer die muntstuk op stert land.

Identifiseer die groepe
Daar is twee unieke datawaardes: K en S. Daarom is daar twee groepe: een vir die K-datawaardes en nog een vir die S-datawaardes.
Tel hoeveel datawaardes daar in elke groep val
Frekwensie van datawaardes in Datastel 1

Datawaardes Frekwensie

K 44

S 56
Maak seker dat die totaal van die frekwensiekolom gelyk is aan die som van die totale aantal datawaardes
Daar is 100 datawaardes en die total van die frekwensiekolum is 44 + 56 = 100.

Oefeninge: groepering van data

Die lengtes van 30 leerders word hier aangetoon. Groepeer die data in die gegewe tabel (onder). (Telmerke is 'n gerieflike manier om in 5'e te tel. Ons gebruik die vierstreep-hek metode: 1111 om 4 aan te dui en 1111 met 'n horisontale streep deur die 4 vertikale strepies om 5 aan te dui.)

142	163	169	132	139	140	152	168	139	150
161	132	162	172	146	152	150	132	157	133
141	170	156	155	169	138	142	160	164	168

Groep	Telmerke	Frekwensie
130 $\leq h <$ 140
140 $\leq h <$ 150
150 $\leq h <$ 160
160 $\leq h <$ 170
170 $\leq h <$ 180

'n Eksperiment is uitgevoer in 'n klas en 50 leerders is gevra om te raai hoeveel lekkertjies daar in 'n gegewe fles is. Die volgende raaiskote is opgeneem:

56	49	40	11	33	33	37	29	30	59
21	16	38	44	38	52	22	24	30	34
42	15	48	33	51	44	33	17	19	44
47	23	27	47	13	25	53	57	28	23
36	35	40	23	45	39	32	58	22	40

Trek 'n gegroepeerde frekwensietabel op vir die intervalle 11 tot 20, 21 tot 30, 31 tot 40, ens.

Questions & Answers

Discuss the differences between taste and flavor, including how other sensory inputs contribute to our perception of flavor.

John Reply

taste refers to your understanding of the flavor . while flavor one The other hand is refers to sort of just a blend things.

Faith

While taste primarily relies on our taste buds, flavor involves a complex interplay between taste and aroma

Kamara

which drugs can we use for ulcers

Ummi Reply

omeprazole

Kamara

what

Renee

what is this

Renee

is a drug

Kamara

of anti-ulcer

Kamara

Omeprazole Cimetidine / Tagament For the complicated once ulcer - kit

Patrick

what is the function of lymphatic system

Nency Reply

Not really sure

Eli

to drain extracellular fluid all over the body.

asegid

The lymphatic system plays several crucial roles in the human body, functioning as a key component of the immune system and contributing to the maintenance of fluid balance. Its main functions include: 1. Immune Response: The lymphatic system produces and transports lymphocytes, which are a type of

asegid

to transport fluids fats proteins and lymphocytes to the blood stream as lymph

Adama

what is anatomy

Oyindarmola Reply

Anatomy is the identification and description of the structures of living things

Kamara

what's the difference between anatomy and physiology

Oyerinde Reply

Anatomy is the study of the structure of the body, while physiology is the study of the function of the body. Anatomy looks at the body's organs and systems, while physiology looks at how those organs and systems work together to keep the body functioning.

AI-Robot

what is enzymes all about?

Mohammed Reply

Enzymes are proteins that help speed up chemical reactions in our bodies. Enzymes are essential for digestion, liver function and much more. Too much or too little of a certain enzyme can cause health problems

Kamara

yes

Prince

how does the stomach protect itself from the damaging effects of HCl

Wulku Reply

little girl okay how does the stomach protect itself from the damaging effect of HCL

Wulku

it is because of the enzyme that the stomach produce that help the stomach from the damaging effect of HCL

Kamara

function of digestive system

Ali Reply

function of digestive

Ali

the diagram of the lungs

Adaeze Reply

what is the normal body temperature

Diya Reply

37 degrees selcius

Xolo

37°c

Stephanie

please why 37 degree selcius normal temperature

Mark

36.5

Simon

37°c

Iyogho

the normal temperature is 37°c or 98.6 °Fahrenheit is important for maintaining the homeostasis in the body the body regular this temperature through the process called thermoregulation which involves brain skin muscle and other organ working together to maintain stable internal temperature

Stephanie

37A c

Wulku

what is anaemia

Diya Reply

anaemia is the decrease in RBC count hemoglobin count and PVC count

Eniola

what is the pH of the vagina

Diya Reply

how does Lysin attack pathogens

Diya

acid

Mary

I information on anatomy position and digestive system and there enzyme

Elisha Reply

anatomy of the female external genitalia

Muhammad Reply

Organ Systems Of The Human Body (Continued) Organ Systems Of The Human Body (Continued)

Theophilus Reply

what's lochia albra

Kizito

Got questions? Join the online conversation and get instant answers!

Jobilize.com Reply

<< Chapter < Page Page > Chapter >>

Read also:

Get Jobilize Job Search Mobile App in your pocket Now!

100% Free Mobile Applications
Receive real-time job alerts and never miss the right job again

Source: OpenStax, Siyavula textbooks: wiskunde (graad 10) [caps]. OpenStax CNX. Aug 04, 2011 Download for free at http://cnx.org/content/col11328/1.4

Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Siyavula textbooks: wiskunde (graad 10) [caps]' conversation and receive update notifications?

Ask

	37 Biology 37 The Endocrine System MCQ By OpenStax Start Quiz
	26 AP Key Terms 26 Fluid, Electrolyte, Acid-Base By OpenStax Start Key Terms
	Cardiac Electrophysiology Basic By Mistry Bhavesh Start Quiz
	Does your crush like you? By Hoy Wen Start Quiz
	17 Dr. Avery GI Bio Path quiz By Brooke Delaney Start Exam
	1 Physiotherapy Flashcards Set 1 By Rhodes Start Flashcards
	11 Sociology 11 Race and Ethnicity MCQ By OpenStax Start Quiz
	Real Estate Finance By Mldelatte Start Quiz
©flickr: Justin	Music Appreciation Final Practice By Madison Christian Start Exam
	Kira Kira Test By Briana Knowlton Start Quiz

142	163	169	132	139	140	152	168	139	150
161	132	162	172	146	152	150	132	157	133
141	170	156	155	169	138	142	160	164	168

56	49	40	11	33	33	37	29	30	59
21	16	38	44	38	52	22	24	30	34
42	15	48	33	51	44	33	17	19	44
47	23	27	47	13	25	53	57	28	23
36	35	40	23	45	39	32	58	22	40

Datawaardes	Frekwensie
K	44
S	56

142	163	169	132	139	140	152	168	139	150
161	132	162	172	146	152	150	132	157	133
141	170	156	155	169	138	142	160	164	168

56	49	40	11	33	33	37	29	30	59
21	16	38	44	38	52	22	24	30	34
42	15	48	33	51	44	33	17	19	44
47	23	27	47	13	25	53	57	28	23
36	35	40	23	45	39	32	58	22	40

142	163	169	132	139	140	152	168	139	150
161	132	162	172	146	152	150	132	157	133
141	170	156	155	169	138	142	160	164	168

56	49	40	11	33	33	37	29	30	59
21	16	38	44	38	52	22	24	30	34
42	15	48	33	51	44	33	17	19	44
47	23	27	47	13	25	53	57	28	23
36	35	40	23	45	39	32	58	22	40