Agroup consists of four men and six women. five people are selected to attend a conference.
a. in how many ways can five people be selected from this group of ten?
b. in how many ways can five women be selected from the six women?
c. find the probability that the selected group will consist of all women.

true

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

2 over 5 and 4 over 15

don’t know last one sorry

step-by-step explanation: