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Rama09 [41]
2 years ago
12

Let x be the ages of students in a class. Given the frequency distribution f(x) above, determine the following probabilities:.

Mathematics
1 answer:
lora16 [44]2 years ago
8 0

Probabilities are used to determine the chances of events

The value of the probability P(x < 24) is 0.7895

<h3>How to calculate the probability P(x < 24)?</h3>

This is calculated as:

P(x < 24) = \frac{n(x < 24)}{Total}

So, we have:

P(x < 24) = \frac{22 + 3 + 5}{22 + 3 + 5 + 4 + 4}

Evaluate the sums

P(x < 24) = \frac{30}{38}

Evaluate the quotient

P(x < 24) = 0.7895

Hence, the value of the probability P(x < 24) is 0.7895

Read more about probabilities at:

brainly.com/question/9385303

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yes!

Step-by-step explanation:

if it has a 90° angle it is a right triangle :)

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2 years ago
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David's dinner cost $24. He wants to leave a 20% tip. The tax rate is 8%. What is the total he will pay? (not $31.10)
Hitman42 [59]

Answer:

$30.72

Step-by-step explanation:

You were right with your answer, the teacher is probably just wanting you to tip on the subtotal (before tax) instead of the total total. Instead of doing total+tax+tip, we're going to figure out the tax and tip separately and then add it all together.

<u>Tipping on the subtotal (what your teacher wanted)</u>

20% of $24 = $4.80

8% of $24 = $1.92

$24+$4.80+$1.92=$30.72

<u>Tipping on the total (what you did)</u>

8% of $24 is $1.92

New total is $25.92

20% of $25.92 is $5.18

$25.92 + $5.18 = $31.10

5 0
2 years ago
Katie invests $5,000 in an account earning 4% interest, compounded annually for 5 years. Two years after Katie's initial investm
Lyrx [107]
Emily earned $166 more in her account than Katie.

We use the compound interest formula for both of these:

A=p(1+r)^t

For Katie's deposit:
A=5000(1+0.04)^5=5000(1.04)^5 = 6083.26

This gives Katie 6083.26-5000 = 1083.26 in interest (1083, to the nearest dollar).

For Emily's deposit:
A=10000(1+0.04)^3=10000(1.04)^3=11248.64

This means she earned 11248.64-10000=1248.64 in interest (1249, to the nearest dollar).

The difference in interest is given by 1249-1083=166
4 0
3 years ago
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Fynjy0 [20]

It’s 23 because i did the calculation and i also did a little bit of this alit tule bi tof that and done

Step-by-step explanation:

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1 year ago
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Will give brainiest and thx for the help
irinina [24]
C would be the correct answer I hope you have an amazing day!
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2 years ago
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