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: what in the world is this

step-by-step explanation:

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.