The table includes two columns, deviation from the mean and squared deviation.

a. Given that the sample mean is 5.5, complete the two unfinished columns in Table 5.10.

b. Use the information from the Squared Deviation column and the frequencies shown in Figure 5.20 to calculate the standard deviation for teenagers’
opinions about the extent to which social media causes bullying.

c. Explain what the standard deviation means in words.

d. Use Figure 5.20 to find the interquartile range for this variable. Explain what it means in words.