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2 years ago

The median for the data: 10,12,15,16,8, 7 is

Mathematics

2 answers:

Lerok [7]2 years ago

8 0

Answer:

Step-by-step explanation:

7,8,10,12,15,16

12+10=22÷2=11

ANTONII [103]2 years ago

8 0

Answer:

Step-by-step explanation:

10, 12, 15, 16, 8, 7

Write the numbers in increasing order:

7, 8, 10, 12, 15, 16

The median is the middle number if there is an odd number of numbers.

Here we have an even number of numbers (6), so the median is the arithmetic mean (average) of the two middle numbers.

median = (10 + 12)/2 = 22/2 = 11

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3 years ago

What two numbers have a product of -30 and a sum of -1?

Maurinko [17]

Answer:

5 and -6

Step-by-step explanation:

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3 years ago

Read 2 more answers

4x+8y=17<br> Solve for y

olasank [31]

Answer:

4x + 8y = 17

Solve for y.

You want to get y on one side of the equal sign by itself so... you subtract 4x from both sides to get:

8y = -4x + 17

Then you divide both sides by 8 to get:

y= -4x/8 +17/8

Then simplify the fractions to get:

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Step-by-step explanation:

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3 years ago

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The average summer temperature in Anchorage is 69°F. If the daily temperature is normally distributed with a standard deviation

mafiozo [28]

Answer:

81.85%

Step-by-step explanation:

Given :

The average summer temperature in Anchorage is 69°F.

The daily temperature is normally distributed with a standard deviation of 7°F .

To Find:What percentage of the time would the temperature be between 55°F and 76°F?

Solution:

Mean = $\mu = 69$

Standard deviation = $\sigma = 7$

Formula : $z=\frac{x-\mu}{\sigma}$

Now At x = 55

$z=\frac{55-69}{7}$

$z=-2$

At x = 76

$z=\frac{76-69}{7}$

$z=1$

Now to find P(55<z<76)

P(2<z<-1)=P(z<2)-P(z>-1)

Using z table :

P(2<z<-1)=P(z<2)-P(z>-1)=0.9772-0.1587=0.8185

Now percentage of the time would the temperature be between 55°F and 76°F = $0.8185 \times 100 = 81.85\%$

Hence If the daily temperature is normally distributed with a standard deviation of 7°F, 81.85% of the time would the temperature be between 55°F and 76°F.

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2 years ago