A random sample of 30 Medgar Eves College students is selected. Each student is

Question

A random sample of 30 Medgar Eves College students is selected. Each student is asked how much time he or she spent watching television during the previous week. The following times (in hours) are obtained: Construct a frequency distribution for the data. Covert the numeral to a numeral in base ten. A) 23 B) 13 C) 48 D) 104 Find the mean for the data items in the given frequency distribution. Round to the nearest hundredth, if necessary. A random sample of 30 attorneys is selected. The following list gives their ages: 50, 78, 62, 65, 75, 83, 72, 61, 49, 55, 63, 51, 81, 64, 80, 52, 49, 59, 64, 71, 58, 51, 68, 73, 87, 74, 50, 73, 92, 91 Construct a stem-and-leaf plot for the data. What does the shape of the display reveal about the ages of the attorneys?

Explanation / Answer

10)

12)

mean = (1*5) + ( 2 * 1) + ( 3 * 3 ) +( 4 * 6) + ( 5 * 10) + ( 6 * 8) + ( 7 * 12 ) + ( 8 * 9) + ( 9 *11)+ ( 10*11) / ( 5 + 1 + 3 + 6 + 10+ 8 + 12+ 9 + 11 + 11)
= 6.6184

13)

Right skewed distribution shape

Times Frequency 14 4 15 5 16 6 17 5 18 4 19 2 20 2 21 0 22 0 23 2 Total 30

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