Question

Use the standard normal (z score) table to find: P(-1.00 ≤ z)

Find the probability that a data value picked at random from a normal population will have a standard score (z) that lies between the following pairs of z-values. z = 0 to z = 2.10

Answer 1

From normal distribution table

P(-1.00 ≤ z)=0.15866

Solution2:

he probability that a data value picked at random from a normal population will have a standard score (z) that lies between the following pairs of z-values. z = 0 to z = 2.10

P(Z<2.10)-P(Z<0)

From normal distribution table

=0.9821-0.500

=0.4821

The probability that a data value picked at random from a normal population will have a standard score (z) that lies between the following pairs of z-values. z = 0 to z = 2.10 is 0.4821