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
Blababa [14]
3 years ago
10

Consider the following data: 14 21 23 19 16 15 20 20 21 25 24 18 17 23 26 18 16 15 24 21 16 19 21 23 20 23 14 13 14 14 12 26 19

25 15 23 25 25 19.
A. Develop a frequency distribution using classes of 12-14, 15-17, 18-20, 21-23, and 24-26.
B. Develop a frequency distribution and percent frequency distribution.
Mathematics
1 answer:
aev [14]3 years ago
8 0

Answer:

A.

Class interval frequency

12-14                  6      

15-17                  7

18-20                9

21-23                9

24-26                8

Total                39

B.

Class interval frequency  Percent frequency

12-14                  6                    0.15

15-17                  7                     0.18

18-20                9                     0.23

21-23                9                     0.23

24-26                8                     0.21

Total                39                   1

Step-by-step explanation:

a)

There are total 39 observation in the data. Note that sum of frequencies should be equal to the number of data values i.e. sum f=n=39.

Arranging the data values in the frequency distribution. The frequency depicts that number of times data value occurs in the data

Class interval frequency

12-14                  6      

15-17                  7

18-20                9

21-23                9

24-26                8

Total                39

The class interval were given and frequency for each class interval depicts the number of data values falls in this interval.

b)

The class interval are given and we already found the frequencies. Now we have to find percent frequencies for each class which can be calculated by dividing the frequency of respective class to the sum of frequencies. Also, sum of percent frequencies should be equal to 1.

Class interval frequency  Percent frequency

12-14                  6                    6/39=0.15

15-17                  7                     7/39=0.18

18-20                9                     9/39=0.23

21-23                9                     9/39=0.23

24-26                8                    8/39= 0.21

Total                39                   1

You might be interested in
If 3 dice are rolled at the same time, what is the probability of all 3 dice showing even face
Bezzdna [24]
Total possible outcomes of 3 dice = 6 x 6 x 6 = 216

Total number of ways for all 3 to show even numbers:
222
224
226
242
244
246
262
264
266
.
.
etc.    There 27 of them.

Probability = 27 / 216 = <u>1/8</u> = 12.5 percent .
5 0
2 years ago
4. Let f(x) = 2x +1 and g(x) = x². Find (gºf)(a).
PolarNik [594]

Answer:

Step-by-step explanation:

hello :

f(x) = 2x +1 and g(x) = x².

(gºf)(a)= g(f(a)) = g(2a+1) = (2a+1)² = 4a²+4a+1

3 0
3 years ago
Dr. Newton is saving up to buy a car. She has already saved $3,000. If she wants to spend
Nuetrik [128]

Dr. Newton needs 5000 dollars, and 3000 dollars have already been saved. So, 2000 dollars remain.

If these 2000 dollars must be saved withint 8 months, we can divide the amount needed by the time given, to find out that Dr Newton needs to save

\dfrac{2000}{8}=250

dollars each month.

4 0
3 years ago
Engineers want to design brakes that will reduce stopping distances by 10%. How would this change the equation relating speed s,
AlekseyPX
For the answer to the question above,  we will use this formula to solve this problem
<span>d = kv^2 </span>

<span>plugging in, </span>
<span>4.2 = k*10^2 </span>
<span>k = 0.042 </span>

<span>d = 0.042v^2 </span>

<span>the revoised equation will be </span>
<span>d = 0.9*0.042v^2 , i.e. </span>

<span>d = 0.0378v^2 

I hope my answer helped you</span>
8 0
3 years ago
Can someone help??.?.
Butoxors [25]

Answer: 8/100

Step-by-step explanation: I converted 5/10 in 50/100 and subtracted 50 from 58 and got 8 so the answer is 8/100.

8 0
3 years ago
Read 2 more answers
Other questions:
  • NEED HELP PLEASE ASAP Given: AEDFG AABF
    11·1 answer
  • PLEASE HELP!
    15·1 answer
  • Put the numbers in order from least to greatest. - 29 , -5.39, - 27 5 , -5 7 20
    8·2 answers
  • Which equation has the following characteristics?
    15·1 answer
  • What is the solution to the equation 1 over 21 multiplied by x is equal to 1 over 7?
    5·2 answers
  • A(n)
    11·2 answers
  • A triangle has two angle measures of 20 degrees and 30 degrees. Find the third angle. This triangle is a(n) ________ triangle
    13·1 answer
  • Could someone help me out with this math question 20 points correct answers only
    14·1 answer
  • Please help me please please ASAP ASAP please ASAP
    10·2 answers
  • Sheila earns a 1.5% commission as a salesperson. She sold a bike for $200.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!