MCQ Questions

Chapter

Question No. 1

Find the mean, mode and median for the following data sets.

Answer :

a) 19 23 18 21 17 17 19

b) 6 9 3 5 3 7 3 4

c) 14 14 19 20 12 14 18 16

d) 6.7 cm 7.2 cm 6.4 cm 7.3 cm 7.2 cm 4.2 cm

e) 257 ml 298 ml 172 ml 193 ml 240 ml 276 ml 301 ml 251 ml

Question No. 2

Find the mean from the following tables of values.

Answer :

a) Shoe size 5 6 7 8 9 Frequency 1 2 4 3 2

b) Weight (kg) 35 36 37 38 39 Frequency 2 5 6 1 1

c) Petals on a flower 9 10 11 12 13 Frequency 9 14 17 21 6

Question No. 3

The mass of 8 adults are 67 kg, 98 kg, 75 kg, 76 kg, 85 kg, 59 kg, 91 kg and 72 kg respectively. Find the mean and the median mass of the group of adults.

Answer :

Question No. 4

The temperature in degrees Celsius was measured at 13:00 each day for 10 days. Here are the results: 22°, 19°, 27°, 26°, 21°, 22°, 18°, 31°, 32°, 20°.

Answer :

a) Find the mean, median and modal temperatures for the period.

b) Which average best describes the temperature during this period? Explain your answer.

Question No. 5

The daily rainfall in mm for two weeks is given below. Week 1: 14 13 11 15 18 13 14. Week 2: 27 31 29 0 9 0 0. Find the mean daily rainfall for each week.

Answer :

1 2 3 4 5

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