Question

Find the area under the standard normal to the right of z = -1.50 and z = 2.50 (Round answer to the nearest ten-thousandths.)

Answer 1

Area under the standard normal to the right of z = -1.50

using the identity

we can write it as

this is means that the area under the right of z = -1.5 is same as the area to the left of 1.5

now using the standard normal distribution table, we get

Area under the standard normal to the right of z = 2.5

we have to find the value of

using the identity , we can write it as

using the standard normal distribution table, we can write