Binomial Conditions

Let X be a binomial random variable that is binomially distributed with a mean of 18 and a variance of 6. Find n and p.

(a)  

Find the mean, variance, and standard deviation for each of the values of n and p when the conditions for the binomial distribution are met.

n =100, p = 0.75

Find the mean, variance, and standard deviation.

• mean = 18.75

  variance = 75

  sd = 4.33

• mean = 4.33

  variance = 18.75

  sd = 75

• mean = 75

  variance = 18.75

  sd = 4.33

Find the product:
(3x + 2)(2x + 4)

• 6x² + 16x + 8

• 5x² +11x + 6

• 5x² + 16x + 6

• 6x² + 11x + 8

Tags

CCSS.HSA.APR.A.1

Simplify:
(x-7)²

• x²-49

• x²+49

• x²-14x+49

• x²-14x-49

Tags

CCSS.HSA.APR.C.4

Write the expanded (general) form of the product (x+3)(x+6).

• x²+18x+9

• x²+9x+18

• x²+18x+18

Tags

CCSS.HSA.APR.A.1

Multiply: (y + 9)2

• y² +18y + 81

• y² + 81

• y + 9

• y² +18y + 18

Tags

CCSS.HSA.APR.C.4

What is the acronym that works with multiplying binomials?

• FIOL

• FOOL

• FOLL

• FOIL

Tags

CCSS.HSA.APR.A.1

Square of a Binomial results into ___________?

• Perfect Square Trinomial

• Difference of two squares

• Six terms

• General Trinomial

Tags

CCSS.HSA.APR.C.4

A biped (two-legged chicken) is looking for a binomial... which is it?

• x² + 3x

• x² - x - 1

• √49

• w²

• x^1/2 + 1

For which of the binomial distributions listed below is the normal distribution not a reasonable approximation?

• n = 50, p = 0.4

• n = 40, p = 0.12

• n = 75, p = 0.15

• n = 50, p = 0.8