Question

14/ For the data set 8, 6, 29, 3, 9, 23, 15, 18, 5, 3, 22, 27, 4, 2 and 22 the midrange is

A./ 16 B/ 11 C/ 15 D/ 18

15/ By the Empirical Rule, in a city of 62,000 people, the number of people below the mean by more than 1 standard deviation is:

A./ 41,160 B/ 9, 920 C/ 21,080 D/ 6,200

Questions 16-18 : Use the distribution in the form of the stem-leaf plot.

Stem Leaves

1                 1478

2              01237888

3                  189          

16/ The mid-point of the third class is

A./   32   B/   36 C/    34.5 D/   35

17/ The median is

A./   24 B/  23 C/ 25   D/ 5

18/ The relative frequency for the third class is:

A./   20%   B/  50% C/    66% D/   40%

25/ The box-plot of a data with 5- point summary 2, 6, 8, 11, 18

A/is positive skewed. B/ is negative skewed.

C/ is symmetric D/ perfect skewed

Answer 1

Date Page (14 Given that- =8,6129,3,9,23,15,18 5, 3,22,2714121 12 920-13 Kang maximum minimum 23+2 31 mid Range 21: 3.5 15.5 2 mid Range L6 Answer fs(A 15 (16 11,1417118 20 21122,23, 2,28,28,23 311381 39 Answer is ( 36 Median 23 (17 20% 18 25 2. 18 Answer is®