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xenn [34]
3 years ago
8

Willing to give brainliest! Practice question I dont understand the math.

Mathematics
1 answer:
aivan3 [116]3 years ago
4 0

Answer:

Step-by-step explanation:

Part A:

The interquartile range is approximately 10

Part B:

The difference between the median values for each data set  is approximately 6

Part C:

i) More widely distributed and concentrated to the beginning of the month

The better measure of the center for the male dataset is the median

ii) The skewed distribution

The mean is the better measure of center for the dataset

Part D;

A possible reason for the outlier is by chance

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Help me with three questions a brainlist!
Naya [18.7K]

Answer:

Step-by-step explanation:

First question

1 solution

  • 6p-12= - 5p       Take 6p from both sides
  • -12 = -5p - 6p    Combine
  • -12 = - 11p           Divide by - 11
  • -12/-11 = p
  • 1.09 = p

Second Question

  • Infinitely many solutions.
  • 5p + 10 = 5p + 10
  • No matter what value you use for p, the right side of the equation always equals the left side.

Third question

  • y = 25 - 2x
  • x = 6
  • y = 25 - 2*6
  • y = 25 - 12
  • y = 13

There are 13 more stops to make.

6 0
2 years ago
M−4=100<br> what is the anwser
Viefleur [7K]

Answer:

m=104

Step-by-step explanation:

Add 4 to each side

7 0
3 years ago
Read 2 more answers
1. Line m does not intersect RS.
rjkz [21]

Answer:

I NEED MORE OF AN EXPLANATION

Step-by-step explanation:

SOORRYY

4 0
4 years ago
A marketing researcher wants to find a 96% confidence interval for the mean amount those visitors spend per person per day while
ki77a [65]

Answer:

n=(\frac{2.054(12)}{4})^2 =37.97 \approx 38

So then the minimum sample to ensure the condition given is n= 38

Step-by-step explanation:

Notation

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

\sigma=12 represent the population standard deviation

n represent the sample size  

ME = 4 the margin of error desired

Solution to the problem

When we create a confidence interval for the mean the margin of error is given by this formula:

ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}    (a)

And on this case we have that ME =4 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

The critical value for 96% of confidence interval now can be founded using the normal distribution. The significance is \alpha=1-0.96 =0.04. And in excel we can use this formula to find it:"=-NORM.INV(0.02;0;1)", and we got z_{\alpha/2}=2.054, replacing into formula (b) we got:

n=(\frac{2.054(12)}{4})^2 =37.97 \approx 38

So then the minimum sample to ensure the condition given is n= 38

5 0
4 years ago
Raj takes a taxi to the airport. He expects the taxi to travel at an average speed of 50 mph.
USPshnik [31]
An 1 hour and 30 mins or 90 minutes.
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3 years ago
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