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Feliz [49]
3 years ago
14

N

Mathematics
1 answer:
Nataly_w [17]3 years ago
6 0

Answer:

The answer is B both players have 1/4 of chance of winning so it is a fair game

Step-by-step explanation:

You might be interested in
A large school district in southern California asked all of its eighth-graders to measure the length of their right foot at the
Ber [7]

Answer:

The probability of the sample mean foot length less than 23 cm is 0.120

Step-by-step explanation:

* Lets explain the information in the problem

- The eighth-graders asked to measure the length of their right foot at

  the beginning of the school year, as part of a science project

- The foot length is approximately Normally distributed, with a mean of

 23.4 cm

∴ μ = 23.4 cm

- The standard deviation of 1.7

∴ σ = 1.7 cm

- 25 eighth-graders from this population are randomly selected

∴ n  = 25

- To find the probability of the sample mean foot length less than 23

∴ The sample mean x = 23, find the standard deviation σx

- The rule to find σx is σx = σ/√n

∵ σ = 1.7 and n = 25

∴ σx = 1.7/√25 = 1.7/5 = 0.34

- Now lets find the z-score using the rule z-score = (x - μ)/σx

∵ x = 23 , μ = 23.4 , σx = 0.34

∴ z-score = (23 - 23.4)/0.34 = -1.17647 ≅ -1.18

- Use the table of the normal distribution to find P(x < 23)

- We will search in the raw of -1.1 and look to the column of 0.08

∴ P(X < 23) = 0.119 ≅ 0.120

* The probability of the sample mean foot length less than 23 cm is 0.120

4 0
3 years ago
Evaluate 9 – b when b = 8.
FromTheMoon [43]

Answer:

9 - b = ? 9 - 8 = 1 So, your answer is 1.

Step-by-step explanation:

5 0
3 years ago
Is Figure 1 similar to Figure 2? ​
tamaranim1 [39]

Answer:

no figure 1 isn't similar to figure 2

Step-by-step explanation:

because its sides aren't the same numbers nor do the numbers correlate with the numbers in figure one its 2 different numbers

6 0
3 years ago
One case of books weighs 35 pounds one case of magazine weighs 23 pounds a bookstore wants to ship 72 cases of books and 94 case
Sati [7]

you multiply 35 to 72 to get 2520 and then multiply 23 to 94=2139 add both of the answers to get 4659

7 0
3 years ago
Sorry my brain is fried...
KiRa [710]

Answer:

1:D,2

2:B:She found that -3(9) is positive

3:D:Evaluated -2^2 as -4

4:Confused, is there supposed to be supplemental info?

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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