The cumulative frequency graph gives information about the lengths, in minutes, of 80 telephone calls
80
60
Cumulative
frequency
40
20
10
15
20
25
30
Length of call (minutes)
Find an estimate for the interquartile range of the lengths of the 80 calls.

M∠aoc is a straight angle angle boc = 6x + 29 m∠boc=6x+29 angle aob = 3x + 124 m∠aob=3x+124 ∘ find angle boc

Solve the system of equations y= 3/2 - 1, -x+ y =-3

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.