Question

Suppose the mean height in inches of all 9th grade students at one high school is

estimated. The population standard deviation is 3 inches. The heights of 10
randomly selected students are 74, 68, 74, 73, 70, 61, 75, 61, 73 and 75.

Answer 1

61+61+68+70+73+73+74+74+75+75

÷10

=704÷10

=70.4

Step-by-step explanation:

all data points are divided by the number of data points