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
NARA [144]
3 years ago
6

PLEASE HELPPP >>>>> There are twenty classes at Northwestern Middle School and twenty classes at Southeastern Mid

dle School. The number of students in each class at each school is shown in the dot plots below.
Number of Students in Each Class at Northeastern Middle School
A dot plot. A number line going from 20 to 29 labeled Number of Students. There are 3 dots above 20, 5 above 21, 7 above 22, 4 above 23, 1 above 24, and 0 above 25, 26, 27, 28, and 29.

Number of Students in Each Class at Southeastern Middle School
A dot plot. A number line going from 20 to 29 labeled Number of Students. There is 1 dot above 20, 2 above 21, 2 above 22, 4 above 23, 3 above 24, 2 above 25, 2 above 26, 2 above 27, 1 above 28, and 1 above 29.

Michela says that the modes of the two data are the same so the median and mean must also be the same. What is Michela’s error?

A. The modes are not the same.
B. The means and medians are not the same.
C. Only the modes and the medians are the same.
D. Only the modes and the means are the same.
Mathematics
2 answers:
storchak [24]3 years ago
8 0
The answer to your question is a; In the northeastern school, the mode is 22 but in the southeastern school, the mode is 23
igor_vitrenko [27]3 years ago
8 0

Answer:

A

Step-by-step explanation:

You might be interested in
Find the indicated area under the curve of the standard normal​ distribution; then convert it to a percentage and fill in the bl
trapecia [35]

Answer:

About​ 99.74% of the area is between z = -3 and z = 3

Step-by-step explanation:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Area between z = 3 and z = -3

pvalue of z = 3 subtracted by the pvalue of z = -3

z = 3 has a pvalue of 0.9987

z = -3 has a pvalue of 0.0013

0.9987 - 0.0013 = 0.9974

0.9974*100 = 99.74%

About​ 99.74% of the area is between z = -3 and z = 3

8 0
3 years ago
You bought items at Best Buy that rang up $143.75. You have a 30% discount and have to pay 9.5% sales tax.
Mandarinka [93]

Answer:

$92.33

Step-by-step explanation:

You take 143.75 and multiply by .3 to find the amount you will discount from 145.75, to get 102.025. Then multiply that by .095 to get 9.692375. Subtract that from 102.025 to get 92.33.

3 0
3 years ago
Read 2 more answers
In 1984 a locally-owned car company sold 2,743 cars. In 2003, the car sales rose to 4,069. What was the average rate of change f
tatiyna

Answer:

70 cars  per year.

Step-by-step explanation:

Given:

In 1984 a locally-owned car company sold 2,743 cars.

In 2003, the car sales rose to 4,069.

Question asked:

What was the average rate of change for the total number of cars sold?

Solution:

In 2003 number of cars sold = 4069

In 1984 number of cars sold = 2743

Change in the number of car sold = 4069 - 2743

                                                         = 1326

Now, time interval between 2003 and 1984 = 19

The\ average\ rate\ of\ change=\frac{Change\ in\ the\ number\ of\ car\ sold}{Time \ interval}

                                             =\frac{1326}{19} \\=69.789\\\\=70\ cars\ per\ year\  (approx)

Thus, the average rate of change for the total number of cars sold is 70 cars  per year.

7 0
3 years ago
The general form of a circle is given as x^2 + y^2 + 4x - 12y + 4 = 0.
stepan [7]
If you can rewrite the formula as (x-a)² + (y-b)² = r², the center is at (a,b) and the radius is r.

If you work out this equation, and map it to the original, you will find that the +4x term hints that a = 2 (double product) and -12y hints that b=-6, and r=6.

So, the formula can be written as (x+2)² + (y-6)² = 6² and the center is at (-2,6) and the radius is 6.
7 0
3 years ago
What is 9,800,000,000,100 in scientific notation?
guajiro [1.7K]
9.8000000001 x 10^12
7 0
3 years ago
Read 2 more answers
Other questions:
  • There are approximately 2.2 million deaths per year in country A. Express this quantity as deaths per minute
    6·2 answers
  • Rewrite the following equation in exponential form.<br> log49 (7) =1/2
    10·1 answer
  • I need help please ASAP
    10·1 answer
  • Larry rolls 2 fair dice and adds the results from each.
    15·1 answer
  • A submarine is 84 feet below the surface of the water, and descends 10 feet deeper every minute. How many minutes will it take f
    14·1 answer
  • I will give brainliest
    5·1 answer
  • 2, 4, 8, ...<br> Find the 8th term.
    11·2 answers
  • Write an equation in point-slope form and slope-intercept form for each line.
    9·1 answer
  • 100 points! PLEASE ANSWER!
    14·1 answer
  • Help me to get Brainliest
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!