HEL NOW PLEASE Suppose that children whose parents are in middle to the high-income bracket will, as adults be in a middle to the high-income bracket with a probability .9 and a low-income bracket with a probability of .1 suppose also that children whose parents are in a low-income bracket well as adults, be in a middle to the high-income bracket with a probability.5 and in a low-income bracket with probability.5 A. what is the probability that a grandchild of a low-income family will be in the low-income bracket as an adult?

B. over the long-term what fraction of the adult population will be in the low-income bracket?

see below

step-by-step explanation:

7.   there are 10 data points in the set.   the middle point is between 5 and 6.   the middle point in the top half is 8   and the middle point in the bottom half is 3. to find the iqr , take point 8 and subtract point 3

mid term   point 8 = 100   point 3 = 88

iqr = 100-88 = 12

final   point 8 = 93   point 3 = 78

iqr = 93 - 78 = 15

the final has the greatest iqr

6.   b - there is a high data value that causes the data set to be asymmetrical for the males: the data for males are high and asymmetrical .   there is an outlier for the males that skews the data

5.   the   iqr is a better measure of spread for the movies and basketball games.   since the basketball game has an outlier, we do not want to use standard deviation for measurement.  

3.   the exam median is much higher than the class median.   the median line is farther to the right on the exams

2.   there is no way to tell what the means are from the box and whisker plots.  

7 is the median   7.875 is the mean

step-by-step explanation:

3,4,5,6,8,11,13,13