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3 years ago

The data set represents the total number of people who bought bananas each hour at a grocery store.

Mathematics

2 answers:

AURORKA [14]3 years ago

4 0

Answer:

a number line that goes from 0 to 16. the whiskers range from 1 to 12, and the box ranges from 3 to 9. a line divides the box at 7.

Natali5045456 [20]3 years ago

3 0

Answer:

A number line goes from 0 to 16. The whiskers range from 1 to 12, and the box ranges from 5 to 8. A line divides the box at 7.

Step-by-step explanation:

The data set is 1, 1, 5, 5, 7, 8, 8, 10, 12.

The number in the very middle is 7, or the median. The line should divide the box at 7.

Since the least number is 1 and the most is 12, the whiskers range from 1- 12. This represents our range.

For the box, you have to find the median of the two separate boxes the line divides it into. In other words, you have to find the median of the data sets 1, 1, 5, 5, 7 and 7, 8, 8, 10, 12. These "medians" are 5 and 8. This represents the interquartile range.

Therefore, the answer is "A number line goes from 0 to 16. The whiskers range from 1 to 12, and the box ranges from 5 to 8. A line divides the box at 7."

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Three numbers are in the ratio 3:9:10. If 10 is added to the last number, then the three numbers form an arithmetic progression.

MrRa [10]

Answer:

 The numbers are 6, 18, and 30 

Step-by-step explanation:

If the three numbers are in the ratio of 3:9:10,

let the numbers be 3x, 9x and 10x.

If 10 is added to the last number to form an arithmetic progression

Then, 3x 9x (10x+10) are the progression

The common difference of an arithmetic progression (d) = T₂ - T₁ = T₃ - T₂

T₂-T₁ = T₃ - T₂ .............. Equation 1

Where T₁ = first term of the progression, T₂ = Second term of the progression, T₃ = third term of the progression

Given: T₁ = 3x, T₂ = 9x, T₃ = 10x +10

Substituting these values into equation 1

9x-3x = (10x+10)-9x

Solving the equation above,

3x = 10+x

3x-x = 10

2x = 10

x = 10/2

x = 2.

Therefore the numbers are 6, 18, and 30 

7 0

4 years ago

If you add Natalie's age and Fred's age, the result is 36. If you add Fred's age to 4 times Natalie's age, the result is 72.

kozerog [31]

The known facts

the sum of Natalie's age and Fred's age is 36
the sum of Fred's age times four and Natalie's age is 72

Now, let's set up the equations where N is Natalie's age and F is Fred's age.

N + F = 36 ---- equation 1

N + 4F = 72 ---- equation 2

equation 2 minus equation 1 ---> 3F = 36 ---> F = 12, thus N = 24

Thus Fred is 12 years old, and Natalie is 24 years old.

7 0

2 years ago

Read 2 more answers

The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. a. Find the pro

Bogdan [553]

Answer:

Step-by-step explanation:

Let X be the length of pregnancy.

X is N(268, 15)

a) Prob of pregnancy lasting 307 days or longer

= P(X>307) = $P(Z>\frac{307-268}{15} )\\=P(Z>2.6)\\$

=0.5-0.4953

=0.0047

b) Lowest 2% is 2nd percentile

Z=-2.55

X score = 268-2.55(15)

= 229.75 days

If length of days >230 days then it is not premature.

4 0

3 years ago

Area and estimate helpp

Vikki [24]

Sorry. It's not clear. Plz tell me if there is 12 3/8in?

5 0

3 years ago

ASAP Which absolute value function, when graphed, will be wider than the graph of the parent function, f(x) = |x|?

Natalija [7]

Is there something missing on the third option? None of the other options are wider

4 0

3 years ago

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