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Rudiy27
3 years ago
12

After 3 points have been added to every score in a sample, the mean is found to be M 5 83 and the standard deviation is s 5 8. W

hat were the values for the mean and standard deviation for the original sample
Mathematics
1 answer:
Maurinko [17]3 years ago
5 0

Answer:

Hence the value for the mean is  80 and the standard deviation for the original sample is 8.

Step-by-step explanation:

Mean = 83-3 = 80.

Here the standard deviation didn't change = 8.

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A school has an equal amount of boys and girls. You use a coin to simulate the first three students to arrive at school each day
Nimfa-mama [501]

Answer:3/20

Step-by-step explanation:

Heads=Boy

Tails=Girl

If the first 3 students are boys, all 3 coins must be heads.

Because in 3 of these experiments, the coins all land on heads, and there are 20 experiments completed, 3 out of the 20 experiments are 3 boys; 3/20.

3 0
2 years ago
The side length of an equilateral triangle is 5 cm.<br><br> Find its perimeter
ollegr [7]
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Step-by-Step Explanation:

Side Length (a) = 5cm
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Therefore,
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Perimeter = 15 cm
8 0
1 year ago
Read 2 more answers
A box measures 1/6 ft. long, 1/4 ft. wide, and 1/3 ft. high. Find the volume of the box in inches. Do not include units in your
Viefleur [7K]

Answer:

24

Step-by-step explanation:

We know that the final answer has to be in inches.

To convert ft = in, multiply given ft. by 12.

1/6 = 1/6 * 12 = 2

1/4 = 0.25 * 12 = 3

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6 0
1 year ago
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215% of 41.8 is what number
salantis [7]
Ith Calculator

41.8 = 100%
215%/100% = 2.15
41.8 x 2.15 = 89.87

Without Calculator

41.8 = 100%

x2
83.6 = 200%

/10
4.18 = 10%

/20 
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200 + 10 + 5 = 215%
83.6 + 4.18 +2.09 = <span>89.87</span>
4 0
2 years ago
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If angle 8 measures 115, what is the sum of the measures of angle 1 and angle 4?
bogdanovich [222]

Answer:

need a pictuer

Step-by-step explanation:

7 0
3 years ago
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