Heights of 10-year-olds, regardless of gender, closely follow a normal distribution with mean 55 inches and standard deviation 6 inches. USE THE TI CALCULATOR FUNCTIONS TO COMPUTE YOUR ANSWER. What is the probability that a randomly chosen 10-year-old is shorter than 48 inches?

Probability that a randomly chosen 10-year-old is shorter than 48 inches 0.121 .

Step-by-step explanation:

We are given that heights of 10-year-old closely follow a normal distribution with mean 55 inches and standard deviation 6 inches i.e.;

Mean, = 55 inches       and     Standard deviation, = 6 inches

Also,  Z = ~ N(0,1)

Let X = a randomly chosen 10-year-old

Now, Probability(X < 48 inches) = P( < ) = P(Z < -1.17)

                                                  = 1 - P(Z < 1.17) = 1 - 0.87900 = 0.121

The above probability is calculated using z table.

Therefore, the probability that a randomly chosen 10-year-old is shorter than 48 inches is 0.121 .

answer: b)

step-by-step explanation:

its a dot plot because since the score is not high numbers.

- r3ktforgood ☕

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.