A sample of 81 items is taken from a population with a standard deviation of 45 kilograms. The sample mean is 112 kilograms. What weights are included
in the 68% confidence interval?

A. 92 kilograms to 132 kilograms
B. 102 kilograms to 122 kilograms
C. 107 kilograms to 117 kilograms
D. 97 kilograms to 127 kilograms

Determine whether the samples are independent or dependent. upper a data set includes the morning and evening temperature for the lasta data set includes the morning and evening temperature for the last 90 days.90 days.

Abcd is a square. what is the measure of angle bac

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.