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DanielleElmas [232]
3 years ago
9

A goal keeper saved 5 out of 50 shots what is the chance that he will save the next shot

Mathematics
1 answer:
Anna [14]3 years ago
6 0

Answer:

10%

Step-by-step explanation:

i think

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Can anyone help me with number 5?
Sav [38]

Answer:

a

Step-by-step explanation:

3 0
3 years ago
The accounting department analyzes the variance of the weekly unit costs reported by two production departments. A sample of 16
dusya [7]

Answer:

F=\frac{s^2_2}{s^2_1}=\frac{5.5}{2.5}=2.2

Now we can calculate the p value but first we need to calculate the degrees of freedom for the statistic. For the numerator we have n_2 -1 =16-1=15 and for the denominator we have n_1 -1 =16-1=15 and the F statistic have 15 degrees of freedom for the numerator and 15 for the denominator. And the P value is given by:

p_v =2*P(F_{15,15}>2.2)=0.138

For this case the p value is highert than the significance level so we haev enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviations are not significantly different

Step-by-step explanation:

Information given

n_1 = 16 represent the sampe size 1

n_2 =16 represent the sample 2

s^2_1 = 2.5 represent the sample deviation for 1

s^2_2 = 5.5 represent the sample variance for 2

\alpha=0.10 represent the significance level provided

The statistic is given by:

F=\frac{s^2_2}{s^2_1}

Hypothesis to test

We want to test if the variations in terms of the variance are equal, so the system of hypothesis are:

H0: \sigma^2_1 = \sigma^2_2

H1: \sigma^2_1 \neq \sigma^2_2

The statistic is given by:

F=\frac{s^2_2}{s^2_1}=\frac{5.5}{2.5}=2.2

Now we can calculate the p value but first we need to calculate the degrees of freedom for the statistic. For the numerator we have n_2 -1 =16-1=15 and for the denominator we have n_1 -1 =16-1=15 and the F statistic have 15 degrees of freedom for the numerator and 15 for the denominator. And the P value is given by:

p_v =2*P(F_{15,15}>2.2)=0.138

For this case the p value is highert than the significance level so we haev enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviations are not significantly different

5 0
3 years ago
Every ninth person in line at a movie theater gets free popcorn. Every sixth person gets free apple juice. Shani says that the t
pishuonlain [190]

Find the common multiples:

Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48

Multiples of 9: 9, 18, 27, 36, 45

The common multiples are 18 and 36

The first person in line to get both free would be the 18th person and then the 36th person.

So she is correct that the 36th person would get both free, but they wouldn't be the first person to do it.

8 0
3 years ago
Which undefined term is used to define an angle?<br><br>line<br>plane<br>point<br>ray
Dovator [93]
The answer is point.
3 0
3 years ago
Evaluate the expression below.<br> 13-[4•(8-5)+2-9]•2
In-s [12.5K]

Answer:

Step-by-step explanation:

13 - [4 *(8 - 5) + 2 - 9] * 2 =

13 - [ 4 (3) + 2 - 9] * 2 =

13 - [ 12 + 2 - 9] * 2 =

13 - 5 * 2 =

13 - 10 =

3

8 0
3 years ago
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