1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dmitry [639]
3 years ago
5

A statistics teacher was reading through a summary of his electric usage for the previous year. Typical high temperatures for ea

ch month were included in the summary and the teacher became curious about the distribution of those temperatures. Here are the data (measured in degrees Fahrenheit).
22, 31, 64, 64, 42, 81, 79, 71, 79, 79, 52, 38


a. Find the median. Interpret this value in context.

b. Calculate the mean high temperature from last year. Show your work.

c. Which measure of center better describes a typical high temperature? Justify your answer.
Mathematics
1 answer:
Fiesta28 [93]3 years ago
3 0

Answer:

64

58.5°

Step-by-step explanation:

Given the data:

22, 31, 64, 64, 42, 81, 79, 71, 79, 79, 52, 38

Rearranged data: 22, 31, 38, 42, 52, 64, 64, 71, 79, 79, 79, 81

The median temperature will be :

1/2(n + 1)th term.

n = 12 (number of samples)

0.5 * (12 + 1)th

= 0.5 (13th)

= 6.5 th term

(6th + 7th term) / 2 = (64 + 64) / 2 = 64

The middle temperature value is 80°F

The mean temperature value :

ΣX /n

= sum(22, 31, 38, 42, 52, 64, 64, 71, 79, 79, 79, 81) / 12

= 702 / 12

= 58.5° F

You might be interested in
*Please Help- 35 points*<br> Determine which polynomial is a perfect square trinomial.
butalik [34]

Answer:

d or 4x²-12x-9

Step-by-step explanation:

factoring d you get (2x-3)²

which is a perfect square trinomial so

d or 4x²-12x-9

4 0
3 years ago
HELP PLEASE . im in credit recovery bc i obviously suck at math im going to post a photo with the question &amp; answers .someon
Lostsunrise [7]
Girl im on the same boat as you 
7 0
2 years ago
Wendy is creating a large soup based on a recipe. Her recipe calls for of a pint of milk, but she only has of a pint of milk, so
xeze [42]

Answer:

She can only make 5/6 of her recipe with the amount of milk that she has.

Step-by-step explanation:

Some data of this problem is missing, the data missing is:

Her recipe calls for 3/4 of a pint of milk and she only has 5/8 of a pint of milk.

Now, to know what's the portion she can do with that amount we need to divide the amount of milk she has by the total amount she needs:

\frac{5}{8} ÷\frac{3}{4}

When we divide we turn the second fraction upside down (the numerator becomes the denominator and viceversa) and multiply, thus:

\frac{5}{8}÷\frac{3}{4}=\frac{5}{8}×\frac{4}{3} =\frac{20}{24}

If we simplify this last expression we have:

\frac{20}{24}=\frac{10}{12}  =\frac{5}{6}

Thus, she can only make 5/6 of her recipe with the amount of milk that she has.

<em>Note: In case the data missing is different, you can apply this same procedure with the fractions you have. </em>

6 0
3 years ago
Y= (x-9) (x+3)
juin [17]

Answer:

y = x² − 6x − 27

Step-by-step explanation:

To distribute, you can use something called FOIL.  It stands for First, Outer, Inner, Last.

First, multiply the First term in each factor.

x · x = x²

Now multiply the Outer terms in each factor.

x · 3 = 3x

Next multiply the Inner terms in each factor.

-9 · x = -9x

Finally, multiply the Last terms in each factor.

-9 · 3 = -27

Add them all up:

x² + 3x − 9x − 27

x² − 6x − 27

4 0
3 years ago
The area of a circle is 201 cm². What is the diameter
natima [27]

Answer:

The diameter would be 16

Step-by-step explanation:

The area of a circle is a=r^{2}×π. Now just plug in the values you have which is you area. 201=r^{2}×π now divide by pi on both sides you that you get about 64=r^{2}. Now find the square root on both sides which will then give you 8 as your radius. To find diameter from radius you have to multiply by 2. 8*2=16

8 0
2 years ago
Other questions:
  • Help with this please its easy, trust me!
    9·1 answer
  • Find the surface area of the cone with a diameter of centimeters and a slant height of millimeters
    14·1 answer
  • The middle school baseball team, the badgers won 20 games last year. This year they won 22 games. What is the percent increase o
    7·1 answer
  • In slope-intercept form, what is the equation of the line passing through the points (3, 17) and (7, 25)?
    13·2 answers
  • The price of a gallon of gasoline was $1.65. The price rose y dollars. Then the price dropped $0.15 and later rose again by $0.4
    9·2 answers
  • During a scuba dive, Lainey descended to a point 23 feet below the ocean surface. She continued her
    6·1 answer
  • Please help asap 30 points
    7·2 answers
  • 12(1.5x+2) = 14(x+10.5)
    10·1 answer
  • 14x+7y=217 <br> 14x+3y=189
    8·1 answer
  • Leo sold candy bars for a fundraiser. He spent $25 on a box of candy bars and sold them for $2 each. His profit (after earning b
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!