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3 years ago

The _______ of a discrete random variable represents the mean value of the outcomes.

Mathematics

2 answers:

USPshnik [31]3 years ago

3 0

Answer:

expected value

Step-by-step explanation:

artcher [175]3 years ago

3 0

Answer:

Expected value

Step-by-step explanation:

Expected value- Any discrete variable's expected value is probability-weighted average of all of its possible values.

In simple words, any possible value that can be inferred by the any given variable is compounded by its probability of occurrence and the resulting products are added up to deliver the expected value.

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In a cricket match, a batsman hits a boundary 6 times out of 30 balls he plays.Find the probability that he did not hit a bounda

Margarita [4]

Answer:

The probability of NOT hitting a boundary is (4/5).

Step-by-step explanation:

Let E: Be the event of hitting a boundary

now, Probability of any event E = $\frac{\textrm{Number of favorable outcomes}}{\textrm{Total number of outcomes}}$

Here, number of favorable outcomes = 6

So, P(E) = $\frac{6}{30} = \frac{1}{5}$

⇒Probability of hitting a six is 1/5

Now, P(E) + P(not E) = 1

So, P(not hitting a boundary ) = 1 - P(hitting a boundary)

= 1 - (1/5) = 4/5

Hence, the probability of NOT hitting a boundary is (4/5).

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3 years ago

Joan is 4 feet 2 inches tall. There are 2.54 centimeters in 1 inch. What is Joan’s height in centimeters?

Montano1993 [528]

Answer:

Well its 127

Step-by-step explanation:

4 feet = 48 inches. 2.54 = 1 inch. SOOOOOOOOO. 2.54 x 48 + 2 = 127 :DD

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3 years ago

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chubhunter [2.5K]

Answer:

d is the correct answer

Step-by-step explanation:

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3 years ago

A rectangle has an area of 30 square meters and a perimeter of 34 meter. What are the dimensions of the rectangle?

Veseljchak [2.6K]

Rectangle's Perimeter is P=2(w+l)
where w and l are width and length respectively
34=2(w+l)
17=w+l
w=17-l

now A=wxl
A=(17-l)xl
A=17l-l^2
30=17l-l^2
l^2-17l-30=0

now solve for l

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3 years ago

If a right triangle is rotated around the longest leg, what three-dimensional figure is formed ?

azamat

A cylinder. If you imagine and draw it out it looks like a cylinder.

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3 years ago

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The​ _______ of a discrete random variable represents the mean value of the outcomes.

The _______ of a discrete random variable represents the mean value of the outcomes.