How do you convert 15 feet to centimeters? Print
12 in
Multiply 15 ft by
1 cm
and
1 ft
2.54 in.
1 ft
Multiply 15 ft by
2.54 cm
and
1 in.
12 in
12 in
2.54 cm
Multiply 15 ft by and
It 1 in.
ift
Multiply 15 ft by
1 in.
and
12 in 2.54 cm
TRI
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Convert 15 feet to inches (15 * 12 = 180)

Convert 180 inches to centimeters (180 * 2.54 = 457.2)

The probability is 0.97682

Step-by-step explanation:

We start by finding the z-values of the runner times given.

Mathematically;

z-score = (x-mean)/SD

From the question, mean = 13 seconds and SD = 0.3 seconds

So for 12.4 seconds, we have;

z = (12.4-13)/0.3 = -0.6/0.3 = -2

For 14 seconds, we have;

z = (14-13)/0.3= 1/0.3 = 3.33

So the probability we want to calculate is;

P(-2<z<3.33)

We can find this using the standard normal distribution table

Mathematically;

P(-2<z<3.33) = P(z<3.33) - P(z < -2)

Using the standard normal distribution table, the value of this is;

P(-2<z<3.33) = 0.97682