The average height of the students in Ms. Joan’s class is 130 cm. Assuming that the height of the students is normally distributed with a standard deviation of 3.5 cm, how far from the mean in terms...

The average height of the students in Ms. Joan’s class is 130 cm. Assuming that the height of the
students is normally distributed with a standard deviation of 3.5 cm, how far from the mean in terms
of the standard deviation are the following height of the students?

a. Anna’s height: 124 cm

b. Joey’s height: 139 cm