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horsena [70]
2 years ago
14

Help on a time limit!

Mathematics
1 answer:
hichkok12 [17]2 years ago
4 0
C I petty sure the answer is c
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Brayden tosses a coin 500 times. Of those 500 times, he observes heads a total of 416 times. Calculations show that the probabil
elena-14-01-66 [18.8K]

Answer: The probability of this ocurring by chance is less than 0.01.

The meaning of the significance level is that it tells that there is difference of 1% level when there is no actual difference.

Step-by-step explanation:

Since we have given that

Number of times a coin tossed = 500

Number of times head occurs = 416

So, our Z-score would be

Z_\alpha =\dfrac{416}{500}=0.832

So, At significance level of 0.01, p-value of Z-score is .202704.

and p-value < 0.01, i.e. 0.202704<0.832.

Hence, the probability of this ocurring by chance is less than 0.01.

The meaning of the significance level is that it tells that there is difference of 1% level when there is no actual difference.

7 0
3 years ago
Please help im being timed <br><br> Inverse of f(x)=15x+4
rusak2 [61]

Answer:

f^{-1}(x) =

Step-by-step explanation:

let y = f(x), then rearrange making x the subject

y = \frac{1}{5}x + 4 ( subtract 4 from both sides )

y - 4 = \frac{1}{5}x ( multiply both sides by 5 to clear the fraction )

5y - 20 = x

Change y back into terms of x with x = f^{-1} (x) , then

f^{-1} (x) = 5x - 20

3 0
2 years ago
What is the line slope for y-4=-1/4(x-5) (graph only goes to 10)
umka2103 [35]
The slope of the line would be m = 1/4
5 0
3 years ago
Read 2 more answers
Please help me! 20 points! You don't have to graph btw! This is my final question!
FrozenT [24]

Your \ answer \ is.

1. x-60\\3.g>9\\4.y>=36

- Yaoii

8 0
2 years ago
Read 2 more answers
What’s the answer????
Colt1911 [192]

Answer:

4a - 104 is the expression simplify all the way

Step-by-step explanation:

4 x a = 4a - 4 x 26 = 104 (4a - 104)

6 0
2 years ago
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