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
kramer
3 years ago
15

Will give brainliest answer!

Mathematics
1 answer:
mart [117]3 years ago
8 0

Subtract the smaller median (30) from the larger (55). The result, 25, is the average improvement in test scores from the pretest score to the posttest score.


You might be interested in
Choose Yes or No to tell if the fraction 5/8 will make each equation true.
uranmaximum [27]

Answer:

i need more to answer the question

Step-by-step explanation:

3 0
4 years ago
Someone sold 20 bottles. White water for 1 dollar and the black ones for 2 dollars each. He earned 35 dollars. How many of each
aivan3 [116]

Answer:

20+1+2+35= 58

Step-by-step explanation:

7 0
3 years ago
For skewed data displays, the median is often a better esitmate of the center of distribution than the mean, but
bazaltina [42]

For skewed data displays, the median is often a better estimate of the center of distribution than the mean because the former is unaffected by large numbers.

<h3>What is mean?</h3>

Mean refers to the average of set of two or more numbers.

Mean of a set having 'n'  numbers = \frac{Sum Of 'n' Numbers}{n}

<h3>What is median?</h3>

Median refers to the middle-most value of a list of numbers, arranged either in ascending or descending order.

Median = \left \{ {{\frac{n}{2}^{th}  term, if n = even } \atop( (\frac{n-1}{2}+\frac{n+1}{2})/2)^{th} term, if n = odd   }} \right.

Now,

  • Since it takes the average of all the values in the data set, the mean is the most widely used measure of central tendency.
  • Because it is unaffected by exceptionally big numbers, the median performs better than the mean when analyzing data from skewed distributions.

Hence, For skewed data displays, the median is often a better estimate of the center of distribution than the mean.

To learn more about mean and median, refer to the link:brainly.com/question/6281520

#SPJ4

7 0
2 years ago
how many pounds of rock will you need to fill an area 25 ft by 35 ft to a depth of 2 in. If the rock weighs 1050 lb cubic yard?
Eduardwww [97]

The volume of the area is Length x width x height:

25 x 35 x 2/12 = 145.83 cubic feet.

1 cubic foot = 0.037 cubic yards:

145.83 x 0.037 = 5.40 cubic yards.

5.4 cubic yards x 1050 lbs/ cubic yard = 5,665.6 pounds.

Note:

Rounding and conversion may change the answer slightly, but I believe I rounded everything as it should be.

6 0
3 years ago
A museum groundskeeper is creating a semicircular statuary garden with a diameter of 32 feet. There will be a fence around the g
Leviafan [203]

Answer:

Step-by-step explanation:

There will be a fence around the garden. ... per linear foot. About how much will the fencing costs altogether? Round to the nearest hundreth. Use 3.14 for π ... The straight part of the fence will equal the diameter (d) = 32. The rounded portion will be 1/2 the circumference = (pi)d/2 = (3.14)(16)=50.24.

3 0
3 years ago
Other questions:
  • 21. (06.07 MC) The table below shows the values of y for different values of x:
    6·2 answers
  • What is 3x+4y=16 for x
    14·1 answer
  • Perform the indicated operation. (14x^3y^2z)^4
    15·2 answers
  • Answer my question about this one please
    14·1 answer
  • 15 divided by 6 2/3=
    12·2 answers
  • The lateral areas of two similar cones are 175π and 252π respectively. What is the ratio of their radii?
    5·1 answer
  • Ruth Brown wants to borrow $2,600 for 90 days to pay her real 'estate tax. State Savings and Loan charges 7.25% ordinary interes
    12·1 answer
  • What is two and five sixths divided by one and three fourths?
    6·1 answer
  • Which function represents the sequence -5.5, -4.75 -4,-3.25... ?​
    9·1 answer
  • 4x² + 24x + 20<br> common factor =
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!