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3 years ago

Which event has a probability other than 1/2?

Mathematics

2 answers:

Vadim26 [7]3 years ago

7 0

Answer:

Option B.

Step-by-step explanation:

In the given events lets find out the event that has a probability other than 1/2.

A. Flipping a coin gives result of head or tail, so the probability of the result of tails is 1/2.

B. Choosing a vowel from a bag of tiles that contains one of each letter of the alphabet, so the probability of choosing vowel is 5/26.

C. A cube that has numbered from 1 to 6, there are 3 even numbers and 3 odd numbers, so the probability of rolling even number is 3/6 or 1/2.

D. There is 26 red cards in a standard deck of 52 cards, so the probability of choosing red card is 26/52 or 1/2.

Therefore, events A, C and D gives result of 1/2 and B other than 1/2

So Option B is the correct answer.

monitta3 years ago

6 0

Answer:

B.Choosing a vowel from a bag of titles that contains one of each letter of the alphabet

Step-by-step explanation:

I just did the test.

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Step-by-step explanation:

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3 years ago

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3 years ago

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Answer:

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8 0

2 years ago

A jar of peanut butter contains 454 g with a standard deviation of 10.2 g. Find the probability that a jar contains more than 46

Fofino [41]

Answer:

The probability that a jar contains more than 466 g is 0.119.

Step-by-step explanation:

We are given that a jar of peanut butter contains a mean of 454 g with a standard deviation of 10.2 g.

Let X = Amount of peanut butter in a jar

The z-score probability distribution for the normal distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

where, $\mu$ = population mean = 454 g

$\sigma$ = standard deviation = 10.2 g

So, X ~ Normal( $\mu=454 , \sigma^{2} = 10.2^{2}$ )

Now, the probability that a jar contains more than 466 g is given by = P(X > 466 g)

P(X > 466 g) = P( $\frac{X-\mu}{\sigma}$ > $\frac{466-454}{10.2}$ ) = P(Z > 1.18) = 1 - P(Z $\leq$ 1.18)

= 1 - 0.881 = 0.119

The above probability is calculated by looking at the value of x = 1.18 in the z table which has an area of 0.881.

4 0

2 years ago

Fill in the blanks.

Natasha_Volkova [10]

Hi there! I can help you.

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New balance: All you have to do is add the principal and he new balance. When you do, you get 517.5. The new balance is $517.50.

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2 years ago