Question

For this question, any non-integer answers should be entered as decimals, rounded to the hundredths place.

Consider this data set.



The mean of the data set is ___ , and the sample proportion of numbers less than the mean is ___%

Answer 1

Step-by-step explanation:

Data set is given as 25.5

26

15.3

20.7

18.2

24.3

28.5

20.2

21.4

22.6

18.2

27

26.1

17.9

19.6

Avage 22.1

No. of entries below 22.1 is 8

Proportion of sample proportion of numbers less than 22.1

=8/15 =0.5333

Answer 2

Mean =22.1

The sample proportion of numbers less than the mean is = (7/15 ) *100 =46.67%

Step-by-step explanation:

Mean of the data set can be calculated by adding all numbers and dividing it with total number sample data.

1. Adding all the numbers

25.5 + 26 +18.2 +15.3 + 28.5 + 27 + 20.7 +20.2 +26.1 +18.2 +21.4 +17.9 +24.3 +22.6+ 19.6 =331.5

2. Dividing by total

331.5/15 =22.1