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2 years ago

a bowl contains 24 marbles consisting of 6 whilte, 8 blue 7 black and 3 red. WHat is the probaility of drawing a black marble?

1 answer:

5 0

Probability helps us to know the chances of an event occurring. The probability of choosing a black marble from the bowl is 0.2917.

<h3>What is Probability?</h3>

Probability helps us to know the chances of an event occurring.

Probability=(Desired Outcomes)/(Total Number of possible outcomes)

The total number of marbles in the bowl is 24, while it contains 6 white, 8 blue, 7 black and 3 red. Therefore, the probability of choosing a black marble from the bowl is,

P(Black marble) = Number of black marble/Number of total Marble

P(Black Marble) = 7/24 = 0.2917

Hence, the probability of choosing a black marble from the bowl is 0.2917.

Learn more about Probability:

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The mean monthly car payment for 123 residents of the local apartment complex is $624. What is the best point estimate for the m

Natali [406]

Answer:

The best point estimate for the mean monthly car payment for all residents of the local apartment complex is $624.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

In this question:

We apply the inverse Central Limit Theorem.

The mean monthy car payment for 123 residents of the local apartment complex is $624.

So, for all residents of the local apartment complex, the best point estimate for the mean monthly car payment is $624.

3 0

3 years ago

There are 325 children at the zoo . If 64% of children are boys and the

aleksandr82 [10.1K]

Answer:

117 Girls

Step-by-step explanation:

If 64% of the kids are boys, then 36% are girls 64% + 36% = 100%

.36 x 325 = 117 girls

Proof

.64 x 325 = 208 boys

208 + 117 = 325

4 0

3 years ago

Find the point on the line y = 2x + 3 that is closest to the origin.

Ludmilka [50]

I believe the answer is (-1,1) . The origin is the same as (0, 0) so I drew the line on a quick graph and if you are talking about distance, then the answer should be correct.
Hope this helped :)

6 0

3 years ago

ben earns $9 per hour and $6 for each delivery he makes. he wants to earn more than $155 in an 8-hour workday. what is the least

Ymorist [56]

First find out how much he makes in 8 hours (9x8=72). Then subtract 72 from 155 (155-72=83). Then divide 83 by 6 (83/6=13.8333). Since 83 is not evenly divisible by 6, and since he can't deliver .8333 of a delivery, we would round up, giving us 14). Ben would need to make 14 deliveries in 8 hours to make more than $155 :) Hope this helps you :)

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3 years ago

Find the volume of a cube if each side is 3.3 inches long. Do not round your answer.

ser-zykov [4K]

35.937 inches cubed

To find volume: length x width x height

If the answer is right please consider marking branliest

8 0

3 years ago