The undergraduate admission rate at a certain university for a certain year was 5? %.

a. assuming the admission rate is still 5? %, in a sample of 100 applicants to the? university, what is the probability that exactly 6 will be? admitted? assume that decisions to admit are independent.
b. what is the probability that exactly 94 out of 100 applicants will be? rejected?

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)

Which expression can be used to find the cost of .75 kilogram of cheese at the price of $6.40 per kilogram?