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motikmotik
3 years ago
11

Probability and Statistics

Mathematics
1 answer:
Rainbow [258]3 years ago
6 0

Answer:

Step-by-step explanation: if you want to obtain the probability that x<em> </em>\leq-3 , then you need to add the probability for the cases x=-3 and x=-5.

p=0.13+0.17= 0.3

answer=0.3

You might be interested in
A chemist is researching different sustainable fuel sources. She is currently working with benzene, which must be in liquid form
bearhunter [10]

Answer:

176>x>42

a.because the tem cant be 176 or higher, and it cant be 42 degrees or lower.

b. you must describe the graph of inequality which will look something like this:

c.Because the temperature cannot go below 42 before it freezes, she would not have been able to conduct her research

Step-by-step explanation:

4 0
2 years ago
Of the 100 entries in a costume contest, 39 entrants were dressed as heroes and 45 entrants were wearing a mask. If 21 entrants
ehidna [41]

Correct question with correct options has been attached

Answer:

37

Step-by-step explanation:

Let C represent those dressed as heroes and let B represent those wearing mask

Thus;

n(C) = 39

n(D) = 45

We are told that 21 entrants were dressed as heroes wearing a mask.

Thus; n(C n D) = 21

We are also told that there were a total of 100 entries.

Thus, n(T) = 100

Now, number of entrants neither dressed as heroes nor wearing a mask is given by;

n(T) - n(C u D)

n(C u D) = n(C) + n(D) - n(C n D)

n(C u D) = 39 + 45 - 21

n(C u D) = 63

Thus;number of entrants neither dressed as heroes nor wearing a mask is: 100 - 63 = 37

3 0
3 years ago
Let x = hours spent babysitting on Saturday. Choose the equation that
Ne4ueva [31]

The equation that can be used to represent the situation given that x is the number of hours spent babysitting is 4(x + 8) = 56

<h3>How to write and solve equation</h3>

  • Amount paid per hour for babysitting =$4
  • Total amount made = $56
  • Hours spent babysitting on Sunday = 8 hours

Total earned babysitting on Sunday = Hours spent babysitting on Sunday × Amount paid per hour

= 8 × 4

= $32

Number of hours he babysat on Saturday = $56 - (8 × 4) ÷ 4

= 56 - 32 ÷ 4

= 24 ÷ 4

= 6 hours

  • check all that applies

A. 8x+4 = 56

8x = 56 - 4

8x = 52

x = 52/8

x = 6.5

B. 4x+8 = 56

4x = 56 - 8

4x = 48

x = 48/4

x = 12

C. 8(x + 4) = 56

8x + 32 = 56

8x = 56 - 32

8x = 24

x = 24/8

x = 3

D. 4(x + 8) = 56

4x + 32 = 56

4x = 56 - 32

4x = 24

x = 24/4

x = 6

Learn more about equation:

brainly.com/question/16863577

6 0
2 years ago
joey's mom baked two dozen cookies . that night, there were only 14 cookies left. what percentage of the cookies were eaten?
Aleksandr [31]

Answer:

41.67 % ( to 2 dec. places )

Step-by-step explanation:

Since 2 dozen cookies were baked, that is 24 and 14 were left.

Then 10 were eaten.

Calculate the percentage eaten as

percentage = \frac{numbereaten}{original} × 100%

percentage eaten = \frac{10}{24} × 100% ≈41.67%

5 0
3 years ago
Suppose f(x) = 3x + 5. Describe how the graph of g(x) = f(x) + 12 compares to f
marshall27 [118]

Answer:12

Step-by-step explanation:

i know

4 0
3 years ago
Read 2 more answers
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