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julia-pushkina [17]
3 years ago
14

Ben randomly selects five students from his class, and collects data on the number of hours of sleep they got the previous night

. From these data, he computes a 95% confidence interval as 6.42 + 2. What may he conclude from this interval?
Mathematics
1 answer:
Ainat [17]3 years ago
8 0

Answer:

can you help me to How do wetlands form?

Tributaries flow into rivers.

Runoff travels down the side of a divide.

Water builds up in a depression left by an ice sheet.

Groundwater comes to the surface and floods the land.

Step-by-step explanation:

You might be interested in
Solve for x. Show your work.
Korvikt [17]

Answer:

x=6

Step-by-step explanation:

The sum of the angles is a right angle, which is 90 degrees

5x+ x+54 = 90

Combine like terms

6x+54 = 90

Subtract 54 from each side

6x+54-54 = 90-54

6x = 36

Divide each side by 6

6x/6 = 36/6

x= 6

3 0
3 years ago
oshua wants to buy a flat-screen TV that costs $625. He saves $62.50 each week to buy the TV. In how many weeks will he have eno
oee [108]

Answer:

ten weeks

Step-by-step explanation:

62.50 multiped by 10 moves the decimal over 1 to the right which makes it 625 :)

4 0
2 years ago
5z ≥ -75<br> Help PLease
erastova [34]

Answer: -15

Step-by-step explanation:

In this equation, all you have to do is divide the -75 by the 5 and you get -15.

7 0
3 years ago
COMBINATION/PERMUTATION MATH HELP???
Artyom0805 [142]
This type of combination problem involves combined probability, or the chance that a specific set could be chosen based on the probability of multiple variables.

The number that could be generated follows the example:

XXYZZZZ

where X describes a letter, and Y describes a number that isn’t zero, and Z describes any number.

Two probabilities exist in this situation, depending on the circumstances of the question. By pressing any number once, only 8 letters can be used (ten digits, minus the one and two keys, since they don’t have letters). This means that the probability of this event is:

8 x 8 x 9 x 10 x 10 x 10 x 10

where the two eights are for the letters, the nine is for the digit that isn’t zero, and the tens are for any numbers from the keypad. This permutation yields 5,760,000 choices.

If you are allowed to press the numbers more than once to generate a letter, then the probability changes to account for the entire alphabet. The new probability of this event is :

26 x 26 x 9 x 10 x 10 x 10 x 10

where this permutation yields 60,840,000 choices.

Hope this helps!
5 0
3 years ago
If negative 5C +6 equals -69 what is the value of 6c-15
IceJOKER [234]

-5c + 6 = -69

-5c = - 75

c = 15


6c - 15

6(15) - 15

90 - 15

75

7 0
3 years ago
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