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laiz [17]
4 years ago
9

In a class of 25 students, the following test scores were obtained:

Mathematics
1 answer:
marta [7]4 years ago
5 0

Answer:

Step-by-step explanation:

Firstly,we need to find the mean, median and mode to enable us know the type of distribution it exhibit.

Mode-data with the highest frequency that is data that has the highest repetition which is 59.

Median-the middle data which is 75.

Mean-average of the data that is addition of the data divided by 25 which gives 75.4 approximately equals to 75

Distribution is unimodal symmetric if it has one clear peak(one mode) and mean = median , so Option A is right

Distribution is skewed left if the mean is less than median and the mode is less than the median that is mean is less than the median, and they are both less than the mode. So option B is wrong.

A distribution is uniform if all outcomes are likely to be the same,it is usually a rectangular shaped distribution. So option C is wrong

A distribution is bimodal if it has two modes. This means that there are two data values that tie for having the highest frequency but as for this data we have only one data with the highest frequency so option D is wrong

Option A is correct

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A sample of college students was asked how they felt about their weight. Of the 143 women in the sample who responded, 38 women
Monica [59]

Answer:

a.  Feelings about weight is the response (dependent) variable.  Sex is the explanatory (independent) variable.  The feelings about weight depend on the sex

b. Summary of  observed counts

                         Women   Men   Total

Overweight        38           18       56

Right weight      99          35      134

Underweight       6          25        31

Number           143           78      221

c. Percentage of the 143 women responding in each category:

1. Overweight = 38/143 = 26.6%

2. Right weight = 99/143 = 69.2%

3. Underweight = 6/143 = 4.2%

d. Percentage of the 78 men responding in each category:

1. Overweight = 18/78 = 23.1%

2. Right weight = 35/78 = 44.9%

3. Underweight = 25/78 = 32%

e. Summary of feelings about weight:

                         Women        Men

Overweight        26.6%        23.1%

Right weight      69.2%        44.9%

Underweight       4.2%         32%

Step-by-step explanation:

a) Data:

Sample size = 221

                       Women    Men   Total

Overweight        38           18       56

Right weight      99          35      134

Underweight       6          25        31

Number            143           78      221

b) To obtain the percentage of feelings about weight for each category, the number of those who feel overweight, right weight, or underweight is divided by the total number of women or men.  The value obtained, which is in decimal form, is then converted to percentage by multiplying with 100.

7 0
3 years ago
What is the volume of this container?<br> Plsss HELPPP
Alla [95]

Answer:

480 I think!

Step-by-step explanation:

4 0
3 years ago
Solve the following equation.
serious [3.7K]

Answer:

x²-10×+25=16

ײ-10×=16-25

×(×-10)=-9

but if your question is rather 2x-10×+25=16

then here goes the answers

2x-10×+25=16

-8×=16-25

-8×=-9

×=9/8

×=1¹/8

4 0
3 years ago
Simplify. Consider all cases. |14−(x−6)|
yanalaym [24]

Answer:

20-x; -20+x; -20-x; 20+x

Step-by-step explanation:

|14-x+6|

|20-x|

20-x; -20+x; -20-x; 20+x

4 0
3 years ago
Read 2 more answers
Helllllppp!!!!!!!!!!!!11 marking brainliest!
aalyn [17]

Hello!

Let the unknown number be x.

Subtract 5:

x-5

Double the result: (multiply the result times 2):

2(x-5)

Hope everything is clear.

Let me know if you have any questions!

#KeepLearning

:-)

4 0
2 years ago
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