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DerKrebs [107]
2 years ago
5

A teacher asks her students to write down the number of hours studied, rounded to the nearest half hour. She compiles the result

s and develops the probability distribution below for a randomly selected student. What is the mean of the probability distribution?
Probability Distribution
Hours Studied: X
Probability: P(X)
0.5
0.07
1
0.2
1.5
0.46
2
0.2
2.5
0.07
Mathematics
2 answers:
irina1246 [14]2 years ago
5 0

Answer:1.50

Step-by-step explanation:None

Stels [109]2 years ago
4 0

Answer: the answer is d

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

She has 10 pounds total and she feeds 2/5 per meal, so we do 10/(2/5)) to get 25

Hope this helps

5 0
3 years ago
Eric runs 3 miles in 28 minutes. at the same rate how many miles would he run in 42 minutes?
Nastasia [14]
3miles/ 28 minutes times 42 minutes is equal to 4.5 miles.

Therefore, Eric run 4.5 miles in 42 minutes.

Hopefully this helps!
7 0
3 years ago
If your playing a game and get 15 coins 30 minutes. How many coins will you get in 1 hour and 40 minutes?
krok68 [10]

Answer:

You would get 50 coins in that time.

Step-by-step explanation:

To find this, we first need to find the unit rate. We can get that by dividing the amount of coins by the amount of time.

15 coins/ 30 mins = .5 coins per minute.

Now, we have 100 minutes in the second part of the problem, so we multiply the rate by that amount of time.

.5 coins per min * 100 mins = 50 coins

7 0
3 years ago
The frequency table below shows the ages of 30 children who participate in a soccer legue how many are 12 years or older
babunello [35]
First of all you need to put a table up so people know what you're talking about, but It just so happens I'm a student as well, so the answer is 5 because the question ask how many people are 12 years or older there are 3 12-14 kids and 2 15-17 kids so 3+2=5
8 0
3 years ago
There were 576 bottles of water at the snack shop. People bought 469 bottles of water. How many bottles of water are at the snac
MissTica

Answer:

107

Step-by-step explanation:

576-469=107

3 0
3 years ago
Read 2 more answers
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