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marissa [1.9K]
3 years ago
6

Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest

Mathematics
1 answer:
snow_tiger [21]3 years ago
7 0

Answer:

C

Step-by-step explanation:

The median is the middle number

There are 10 data points

The middle is between points 5 and 6

(30+34)/2 = 32

The line in the middle of the box is the median

Choice C is the only option with the line at 32

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The length of a rectangle is 3 times the width. The perimeter of the rectangle is 72cm. Find the dimensions of the rectangle
larisa86 [58]

Answer:

Length: 27 width:9

Step-by-step explanation:

27 + 27 + 9 + 9 = 72 and 27 is 3 x 9

8 0
3 years ago
The manager of a local nightclub has recently surveyed a random sample of 280 customers of the club. She would now like to deter
Lunna [17]

Answer:

z = \frac{35.6-35}{\frac{5}{\sqrt{280}}}= 2.007

p_v = P(z>2.007) = 0.0224

Since the p value is lower than the significance level given of 0.05 we have enough evidence to reject the null hypothesis on this case. And the best conclusion for this case is:

We (reject) the null hypothesis. That means that we (found) evidence to support the alternative.

Step-by-step explanation:

We have the following info given:

\bar X = 35.6 represent the sampel mean for the age of customers

\sigma = 5 represent the population standard deviation

n = 280 represent the sample size selected

We want to test if the mean age of her customers is over 35 so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 35

Alternative hypothesis \mu >35

The statistic for this case is given by:

z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And replacing the data given we got:

z = \frac{35.6-35}{\frac{5}{\sqrt{280}}}= 2.007

We can calculate the p value since we are conducting a right tailed test like this:

p_v = P(z>2.007) = 0.0224

Since the p value is lower than the significance level given of 0.05 we have enough evidence to reject the null hypothesis on this case. And the best conclusion for this case is:

We (reject) the null hypothesis. That means that we (found) evidence to support the alternative.

5 0
3 years ago
Can you guys please help me
m_a_m_a [10]
The answer is B. First turn all the results from the spelling competition into fractions (or ratios).
Megan: 45/50 = 9/10
Justin: 27/30 = 9/10
Fernando: 84/120 = 7/10
Then, use this information to find which answer is correct.
Have a nice day! :)
4 0
3 years ago
What is 0.1 as a fration and simple form if can be
Kisachek [45]

Answer:

1/10 is the simplest form

4 0
2 years ago
Read 2 more answers
How do you factor this polynomial as a product of more than two factors?<br> x3+8x2+15x
umka21 [38]
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3 years ago
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