the average marks for statistics in a class of 30 were 52. the top six students had an average of 31 marks. what were the average marks of the other students?.

Answer 1

It would help if you proofread your questions before you posted them. If the mean for 30 students was 52, how could the top 6 students only average 31?

Answer 2

The following is a partial relative frequency distribution of consumer preferences for four products—W, X, Y, and Z.
Product

Relative
Frequency


W

0.19


X

—


Y

0.11


Z

0.15


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(a)

Find the relative frequency for product X. (Round your answer to 2 decimal places.)


Relative frequency

Answer 3

.24

Answer 4

0.9