00:01
The probability of x greater than $48 ,600 is given as probability of x minus mu upon sigma is greater than 48 ,600 minus 43 ,256 upon 350.
00:25
That is equal to probability of c less than 1 .70.
00:28
That is equal to probability of c less than 1 .70.
00:31
That is equal to 0 .0.
00:33
5954 using the z table second the probability of x greater than 42 ,000 and less than 48 ,600 is given as probability of 42 ,000 minus 43 ,256 apart 3 ,150 is less than z and z is less than thousand six hundred minus 43 ,256 upon 3 ,150 which is equal to probability of z sorry z greater than minus 0 .40 and less than 1 .70 which is equal to probability of z less than probability of z less than minus 0 .40 which is equal to 0 .954 minus 0 .346 is in the z table that is equal to 0 .6108.
01:52
Third, the probability of x greater than 36 ,000 and less than 42 ,000 is given as probability of 30 ,000.
02:05
Thousand minus 4 ,300 42 ,000 that is upon 31, that is upon 31 ,000, that is less than z and z is less than 42 ,000 minus 43 ,256 upon 30150550 which is equal to probability of z less than less than minus 0 .40 minus probability of z less than minus 2 .3, which is equal to 0 .3339...