7. The mean age at first marriage for respondents in a survey is 23.33, with a standard deviation of 6.13. For an age at first marriage of 33.44,
the proportion of area beyond the Z score associated with this age is
.05. What is the percentile rank for this score?

And for this case we are analyzing the value os 33.44 and we can use the z score formula given by:

And replacing we got:

We know that the proportion of area beyond the Z score associated with this age is  .05 so then the percentile would be: 95

Step-by-step explanation:

For this case we have the following parameters:

And for this case we are analyzing the value os 33.44 and we can use the z score formula given by:

And replacing we got:

We know that the proportion of area beyond the Z score associated with this age is  .05 so then the percentile would be: 95

answer: 3.26019516

step-by-step explanation:

step-by-step explanation:

graph using a few selected

x         y

-1       15

0         6

1         2.4

2       0.96