X follows a normal distribution with mu = 8.1 and sigma = 1.4. P(7.26 < X < 10.76) to four decimal places is:

Q1 options:

1)

0.8030

2)

0.6970

3)

0.3030

4)

0.1970

X follows a normal distribution with mu = 6.9 and sigma = 1.3. P(5.73 < X < 6.25) to four decimal places is:

Question 2 options:

1)

0.3756

2)

0.1244

3)

0.8756

4)

0.6244

X follows a normal distribution with mu = 5.8 and sigma = 1.2. P(X > 7.36) to four decimal places is:

Question 3 options:

1)

0.0968

2)

0.5968

3)

0.9032

4)

0.4032