In a certain country, retirement age is known to follow a left-skewed distribution with a mean value of 64.34 years and a standard deviation of 4.22 years. Suppose we take a random sample of 13 members of this country, and calculate their average age at retirement. What is the probably that this sample has an average value of at most 64.57 years? Select one: a. 0.7580 O b. 0.2420 C. 0.7000 O d. 0.9942 O e We cannot answer this question with the information given.

Q: -6V3 2

A:

Q: Y16x? 14x²-2x² -2

A:

Q: 5x + 9y = 12       4x - 3y = 8

A: Given system of equation 5x+9y=12, 4x-3y=8. Find x and y.

Q: 2x-3x-14=

A: topic - linear equation in one variable

Q: -Sune +1

A: This question is based on solution of Trigonometric equation.

Q: V24x15y5 3

A:

Q: 4x-45=4

A:

Q: 6x-6=3x

A: Firstly, we subtract 3x from both  sides of equation.

Q: y? = 4sinx + 3x²

A: Given function is                                                  y2=4sinx+3x2 Derivative of the…

Q: Integrate +9 +C

A: topic- indefinite integral

Q: 4x + 2y=8 6x - 4y=5

A: Given4x+2y=8 and    --- Eq 16x-4y=5           --- Eq 2We solve for x and yFrom Eq 1:2y=8-4x…

Q: 5x-2y=4+3x+4=9

A:

Q: Find LCM  x3,14x2y,35x4y5

A: x3 = x × x × x 14x2y = 2 × 7 × x × x × y  35x4y5 = 7 × 5 × x × x × x × x × y × y × y × y × y

Q: 2 plus 2

A:

Q: 3x 9. X2+4x+3

A: Given expression is : 3xx2+7x+6+9x2+4x+3 Now add the above expression ,…

Q: 4=6/2x-3

A: Given query is to find the value of x.

Q: 4x - 8x =

A:

Q: Explain how to simplify V10- V5.

A: One of the property of a square root function is :a.a=a2=aAlso, a.b=b.a  (commutative property)So,…

Q: 5x-7=4x-1

A: Given that, 5x-7=4x-1 We will solve it, for the value of x

Q: 25=2x-3

A: solving for x 25=2x-3

Q: ースタ 3x t5

A: the given expression is: we have to simplify the given expression.

Q: 22x - 9.2x = 8

A:

Q: 40x-50x-60

A:

Q: What is

A: Introduction: Multiplication is the procedure of calculating the product of two or more numbers in…

Q: 2x OS dr VI-T

A: The given integral is: ∫2x1-x2dx