Mathematics, 04.03.2020 02:29 keishlav5183

On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 101 and a standard deviation of 17. Suppose one individual is randomly chosen. Let X = IQ of an individual.

a. What is the distribution of X? X ~ N(,)

b. Find the probability that a randomly selected person's IQ is over 97. Round your answer to 4 decimal places.

c. A school offers special services for all children in the bottom 7% for IQ scores. What is the highest IQ score a child can have and still receive special services? Round your answer to 2 decimal places.

d. Find the 25th and 75th percentiles (a. k.a Q1 and Q3) Round your answers to 2 decimal places.
Q1:
Q3:

On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of

Answers: 2

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 16:30

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

Answers: 3

Answer

Mathematics, 21.06.2019 17:50

The length and width of a rectangle are consecutive even integers the area of the rectangle is 120 squares units what are the length and width of the rectangle

Answers: 1

Answer

Mathematics, 21.06.2019 19:10

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

Answers: 2

Answer

Mathematics, 21.06.2019 19:30

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2

Answers: 2

Answer

You know the right answer?

On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of...

Questions