Question

Question 5 of 19 (1 point) 6.1 Section Exercise 16 (calc) Find the area under the standard normal distribution curve between z = 1.66 and z = 2.51. Use a graphing calculator and round the answer to four decimal places. The area between the z values is

Answer 1

Let Z ~ Normal(0,10

The area between the z values is

$=P(1.66<Z<2.51)$

$=P(Z<2.51) - P(Z\leq 1.66)$

$=P(Z\leq 2.51) - P(Z\leq 1.66)$

$=\Phi(2.51) - \Phi(1.66)$