MATHEMATICS COLLEGE

Find the mean of the binomial random variable. Round to two decimal places when necessary. According to a college survey, 22% of all students work full time. Find the mean for the random variable X, the number of students who work full time in samples of size 16. Group of answer choices 2.75 4 3.52 0.22

Answers

Answer 1

Answer:

3.52

Step-by-step explanation:

Calculation to Find the mean for the random variable X

Using this formula

Mean(μ) =(n*p)

Where,

n=16

p=22% or 0.22

Let plug in the formula

Mean(μ)=16×0.22

Mean(μ)=3.52

Therefore the mean for the random variable X will be 3.52

Related Questions

How to solve this?4cos(4x)sin(10x)
kim and courtney share a 20 ounce box of cereal. By the end of the week kim has eat 2/5 of the box and courtney has eaten 1/10 of the box of cereal what fraction of the box is left
HELP! i'll mark you brainliest . find y
NEED HELP WITH MATH! Will Give brainliest!
Can someone explain how to do it aswell please and thank you

Como es la fórmula del perímetro de un hexágono?

Espero respuesta
Gracias

Answers

Answer:

El Perímetro de un hexágono es igual a la suma de todos sus lados.

Step-by-step explanation:

el perimetro siempre es la suma de los lados de cualquier figura

P=6a

Que tengas un buen día

Suppose that a box contains 6 cameras and that 3 of them are defective. A sample of 2 cameras is selected at random (with replacement). Define the random variable X as the number of defective cameras in the sample. Note: For X to have a binomial probability distribution the sample must be with replacement, otherwise the trials are dependent. Write the probability distribution for X . k P( X = k ) 0 Correct .2 Incorrect 1 Correct .5 Correct 2 Correct .2 Incorrect What is the expected value of X ?

Answers

Answer:

p = 3/6 = 0.5

X ~ B(6, 0.5)

P(X=k) = 6Ck × 0.5^k × 0.5^(6-k)

E(X) = np = 6(0.5) = 3

Ashley is buying mulch for her square garden. She measures one side of her garden to be 7.4 feet. How many square feet is her garden?f72

Answers

Answer:

Step-by-step explanation:

Area of a square = Length * Length

Given

Length of garden = 7.4feet

Area of the square = 7.4 * 7.4

Area of the square = 54.76 ft²

Hence the area of the garden is 54.76 ft²

Write the slope-intercept form of the equation of the line
2x + 3y = 18

Answers

Answer:

y=-2/3x+18

Step-by-step explanation:

Slope intercept form equals y=mx+b

Step 1 move 2x to the other side. 3y=-2x+18

Step 2 divide by 3. y=-2/3x+18

6(5 + 3x) is equivalent too

Answers

Answer:

30+18 x

Step-by-step explanation:

Which expression is equivalent to 3x+7+2x

Answers

Answer:

5x + 7

Step-by-step explanation:

Add 3x and 2 x

Other Questions

Determine if the transformation of figure a to figure b is a dilation

Write the slope-intercept form of the equation : a) 4x-2y = 3

Help please as fast as you can

Choose correct way to rewrite 56% as a decimal number.A. 0.056B. 0.56C. 5.6