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Olegator [25]
3 years ago
14

The area under a particular normal curve between 6 and 8 is 0.695. A normally distributed variable has the same mean and standar

d deviation as the parameters for this normal curve. What percentage of all possible observations of the variable lie between 6 and 8​?
Mathematics
1 answer:
TiliK225 [7]3 years ago
4 0

Answer:

69.5%

Step-by-step explanation:

A feature of the normal distribution is that this is completely determined by its mean and standard deviation, therefore, if two normal curves have the same mean and standard deviation we can be sure that they are the same normal curve. Then, the probability of getting a value of the normally distributed variable between 6 and 8 is 0.695. In practice we can say that if we get a large sample of observations of the variable, then, the percentage of all possible observations of the variable that lie between 6 and 8 is 100(0.695)% = 69.5%.

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How many kilograms are 0.54 decalitres?
Anarel [89]

Answer:

A measure of capacity or volume in the metric system equal to one-tenth (10-1) of a liter. One deciliter is also equal to 6.1022 cubic inches, or 3.38 fluid ounces

Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
Justify each step in solving the equation 5(y+3)-11=-y-6 by writing a reason for each statement.
liubo4ka [24]

Explanation:

5(y+3)-11=-y-6 Given

5(y+3)=-y+5 . . . . addition property of equality (11 is added)

5y+15=y+5 . . . . . distributive property (5 is distributed)

5y=-y-10 . . . . . . . addition property of equality (-15 is added)

6y=-10 . . . . . . . . . addition property of equality (y is added)

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6 0
3 years ago
Suzy buys 2 shirts and 2 pairs of pants for 42 dollars at the store. Annette buys 3 shirts and 1 pair of pants for 37 dollars.
alexgriva [62]

Answer:

2s+2p = 42,

3s+p = 37,

2 shirts at 8 = 16,

2 pants at 13 = 26.

Hope this helps.

Step-by-step explanation:

7 0
3 years ago
What is just the coefficient of the 3rd term of (3x + 5y)^8 ?
Burka [1]

Answer:

i hope this is correct, i might be wrong(i am so sorry if i am wrong), but im thinking it is 8

Step-by-step explanation:

6 0
3 years ago
If a student is 65.0 in tall, what is her height in m? (2.54 cm = 1 inch)
spayn [35]

Answer:

Height of the student=1.651m

Step-by-step explanation:

Given: Height of a student= 65.0 inch.

To find: Height of a student in meters.

Solution:

We know that 1 inch=2.54 cm, then

65.0 inch will be =2.54{\times}65.0

65.0 inch will be=165.2 cm

Also, we know that 1cm=\frac{1}{100} m, then

165.2 cm will be equal to=\frac{1}{100}{\times}165.1

165.2 cm will be equal to=1.651 meters

Therefore, the height of a student in meters will be 1.651 meters.

5 0
3 years ago
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