Kona's mother wanted to find out how many minutes her family spends on the phone for each call made. she put her da
table after a week of observation as shown below. she asked kona to make a histogram from the data
number of calls
minutes
1-5
6 - 10
11 - 15
16 - 20
21 - 25
26 - 30
31 - 35
36 -40
41 - 45
46 - 50
which chart has the correct setup for kona's histogram?

People end up tossing 12% of what they buy at the grocery store. assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior. a. calculate the mean and the standard error for the sample proportion p. b. describe the sampling distribution of p in part a. draw a graph of this probability distribution with its mean and standard deviation. what is the probability that your survey will provide a sample proportion more than 15%? c. d. population proportion? what is the probability that your survey will provide a sample proportion within + 0.03 of the