00:01
Hello students, here from the question, we given that mu is equal to 3 and sigma which is equal to 5.
00:11
For the subpart 8, we need to find p of x less than or equal to minus 4.
00:17
The probability of z less than or equal to minus 4 minus 3 divided by 5 which is equal to probability of z less than or equal to minus 1 .4, we get 0 .0808.
00:32
Now subpart 9, the probability of x greater than or equal to 13 which is 1 minus probability of x less than or equal to 13 which is 1 minus probability of z less than or equal to 2, 1 minus 0 .9772, we get 0 .0228.
00:52
Then for the subpart 10, probability of minus 9 less than or equal to x less than or equal to 10 which is probability of x less than or equal to 10 minus probability of x less than or equal to minus 9 which is probability of z less than or equal to 1 .4 minus probability of z less than or equal to minus 2 .4 which is 0 .9192 minus 0 .0082, we get 0 .911.
01:22
Then for the question 11, we need to find the probability of x less than x which is equal to 0 .43 which is here the x is equal to minus 0 .18...