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3 years ago

Identify the given item as probability distribution, continuous random variable, or discrete random variable.

2 answers:

4 0

The amount of field goals that can be achieved in a football game can only be whole number values. For example, a field goal can only be 5 or 6 but not 5.5, 5.6 or 5.7 and etc. Therefore this is a discrete random variable.

77julia77 [94]3 years ago

4 0

Answer: It is a discrete random variable .

Step-by-step explanation:

Since we have given that

The chance that 5 or 6 field goals will be attempted in a football game is a discrete random variable.

As discrete random variable take only integer value whereas continuous random variable take on any value.

But the chance that 5 or 6 field goals will be attempted in a football game will only an integer value.

Hence, it is a discrete random variable .

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4 years ago

A six-sided die is rolled 120 times. Fill in the expected frequency column. Then, conduct a hypothesis test at the 5% level to d

borishaifa [10]

Answer:

Die is not fair given that Pvalue< 0.05, hence we reject Null hypothesis

a) H0: Die = fair

b) Ha : Die ≠ fair

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Step-by-step explanation:

The expected frequency of every face values = 20

a) state Null hypothesis

H0: Die = fair

b) Alternate Hypothesis

Ha : Die ≠ fair

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= ( 6 - 1 ) = 5

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3 years ago

Simplify the fraction and state the excluded value(s).

stira [4]

Answer:

$\displaystyle \frac{7x^2 + 4x - 20}{5x + 10} = \frac{7x - 10}{5}, x \neq -2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Terms/Coefficients

Factoring

Calculus

Discontinuities

Removable (Holes)
Jump (Piece-wise functions)
Infinite (Asymptotes)

Step-by-step explanation:

Step 1: Define

$\displaystyle \frac{7x^2 + 4x - 20}{5x + 10}$

Step 2: Simplify

[Frac - Numerator] Factor quadratic: $\displaystyle \frac{(7x - 10)(x + 2)}{5x + 10}$
[Frac - Denominator] Factor GCF: $\displaystyle \frac{(7x - 10)(x + 2)}{5(x + 2)}$
[Frac] Divide/Simplify: $\displaystyle \frac{(7x - 10)}{5}, x \neq -2$

When we divide (x + 2), we would have a removable discontinuity. If we were to graph the original function, we would see at x = -2 there would be a hole in the graph.

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3 years ago