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Galina-37 [17]
3 years ago
6

He percent distribution of the number of grandchildren for a sample of 1904 grandparents is shown in the pie chart. find each pr

obability.
Mathematics
1 answer:
jekas [21]3 years ago
7 0

down voteaccepted

P(X=1) = 0.09

P(X < 5) = 0.09 + 0.36

P(X >= 2) = .36 + .23 + .09 + .23

P(2 <= X <= 7) = .36 + .23

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PLS HELP ME ASAP FOR 25!! (MUST SHOW WORK!!) + LOTS OF POINTS!!
Serggg [28]
If the rate at which the temperature fell is 4/5 degree/hour then we can simply multiply 5 hours to get our answer. 

4/5 * 5/1 = 20/5 = 4

So, it would change a total of 4 degrees.

I hope this helps. If something is confusing or this answer is wrong, don't be afraid to drop me a DM telling me what is wrong.
5 0
3 years ago
Read 2 more answers
Melissa rolls two number cubes, each with sides that are labeled 1 to 6. What is the probability that both number cubes show a 1
Sati [7]

Answer:

1/36

Step-by-step explanation:

(1/6 * 1/6) = 1/36

7 0
3 years ago
10 kids are swimming and 5 leave but 9 show up how many are swimming now?
xxMikexx [17]
Fourteen kids are swimming
3 0
4 years ago
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3. Bob Baffert hos iwo thoroughbred horses in his bom that he brings out
natima [27]

Answer:

12.5r + 200 = 12.5*2r

Step-by-step explanation:

<h3>Given</h3>

Rate of Hoppertunity = r

Rate of Dortmund = 2r as it is twice as fast

<h3>Solution</h3>

Let the distance Hoppertunity runs be d, then the distance Dortmund runs is d + 200 m

Since it took 12.5 seconds Dortmund to catch Hoppertunity, it can be expressed as:

  • d = 12.5r for Hoppertunity
  • d + 200 =12.5*2r for Dortmund

<u>By replacing d in the second equation, we get:</u>

  • 12.5r + 200 = 12.5*2r

<u>Soving</u>:

  • 12.5r = 200
  • r = 200/12.5
  • r = 16 m/sec

Hoppertunity's rate is 16 m/sec

Dortmund's rate is 32 m/sec

3 0
3 years ago
Which student correctly used guess and check to determine the unknown number?
Alenkasestr [34]
<h2>Explanation:</h2><h2></h2>

Hello! Remember you need to write complete questions in order to get good and exact answers. Here we know nothing about the students so I can only help you providing the correct steps to find <em>the product of a number and eight is 104:</em>

<em />

Let that number be n, then the statement can be written in a mathematical language as follows:

n\times 8=104 \\ \\ \\ \text{Dividing both sides by 8:} \\ \\ \frac{n\times 8}{8}=\frac{104}{8} \\ \\ \boxed{n=13}

Finally, <em>the unknown number is 13</em>

5 0
3 years ago
Read 2 more answers
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