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Ganezh [65]
3 years ago
8

Can I get some help? How to find the indicated probability? Please explain or show your work. Thanks!

Mathematics
1 answer:
prohojiy [21]3 years ago
6 0

Answer:

the easyiest way for me to explain why the answer is A 0.077

Step-by-step explanation:

first add all your numbers it comes up to 1112 then youre going to take that number and put it aside then you dived 86 (the total for anyone at least 31+) and it gices you 0.077

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Solve the equation. -0.2(30) + 0.5x = 0.2(30 + x)
Travka [436]

Answer:

x=40

Step-by-step explanation:

4 0
3 years ago
Mario can eat 21 hot dogs in 6 minutes. At the same place, how many minutes would it take him to eat 35 hot dogs? ​
anyanavicka [17]

Answer:

10 minutes

Step-by-step explanation:

Mario can eat e21 hot dog in 6 minutes

Let 35 hot dog  eats in x minutes :

\frac{35}{x} =\frac{21}{6} \\x=\frac{35(6)}{21} \\x=10 min

Therefore, mario would eat 35 dogs in 10 min.

6 0
3 years ago
A grocery store chain has been tracking data on the number of shoppers that use coupons. the data shows that 71% of all shoppers
sashaice [31]

The confidence interval comes out to be (0.685,0.735).

Calculating the Confidence Level and Other Terms

The confidence level can be calculated as follows,

z = \frac{36}{40} * 100%%  

z = 90 %

The margin error is given as, E= 0.025

The p value in this case is 0.71

Calculating the Confidence Interval

The mean of your estimate plus and minus the range of that estimate constitutes a confidence interval. Within a specific level of confidence, this is the range of values you anticipate your estimate to fall within if you repeat the test.

Confidence interval can be obtained by using the following formula,

(p-E, p+E) = (0.71-0.025, 0.71+0.025).

Therefore, the confidence interval is (0.685, 0.735).

Learn more about confidence interval here:

brainly.com/question/24131141

#SPJ4

3 0
2 years ago
What is the slop and y-intercept of this line y = x - 5
raketka [301]

Answer:

The slope is  

1

y -intercept is  

− 5

.

Step-by-step explanation:

7 0
3 years ago
10 Points mark brainly, The equation of the line in this graph is y = ___ x + ___ .
Brilliant_brown [7]
Hello!

First of all, let's find the slope, which is the rise/run. We have the points (-4,-3) and (-2,0). To get the run there, we move to the left two units. We rise up three units as well. Therefore our slope is positive. We have rise/run, which is 3/2 as our slope.

Now, b is the y-intercept, or when our line intersects with the y-axis. We can see that it intersects at a y-value of 3.

We can write our equation below.

y=3/2x+3

I hope this helps!
3 0
3 years ago
Read 2 more answers
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