× Didn't find what you were looking for? Ask a question
  
  
Top Posters
Since Sunday
50
s
23
9
8
R
7
6
G
4
p
4
C
4
L
3
3
3
New Topic  
Vhansen02 Vhansen02
wrote...
Posts: 346
Rep: 0 0
4 years ago
A relative frequency distribution was constructed for a sample of size n = 120 . The relative frequency for the third class was 0.15 . How many items of data fell into the third class?

Q. 2

What is the largest possible value needed on the vertical axis of a relative frequency histogram?

Q. 3

Explain the difference between a J-shaped histogram and a skewed histogram.

Q. 4

Which is the depth of the 5th percentile for a ranked set of 35 student weights?
 a. 1.50
  b. 2.00
  c. 2.50
  d. 3.00

Q. 5

Which of the following statements is false?
 a. The 5-number summary is more informative when it is displayed on a diagram drawn to scale. A computer-generated graphic display that accomplishes this is known as the box-and-whiskers display.
  b. The position of a specific value in a set of data can be measured in terms of the mean and variance using the standard score, commonly called the z-score.
  c. The z-scores are typically range in value from approximately -3.00 to +3.00 .
  d. None of the above

Q. 6

The 5-number summary divides a set of data into how many subsets?
 a. 6
  b. 5
  c. 4
  d. 3

Q. 7

If the 70th percentile for a set of exam scores is 82, what does this mean?
 a. At most 70 of the exam scores are smaller in value than 82
  b. At most 82 of the exam scores are smaller in value than 70
  c. At least 70 of the exam scores are larger in value than 82
  d. At least 82 of the exam scores are larger in value than 70

Q. 8

Which is the depth of the 65th percentile for a ranked set of 50 student ages?
 a. 32.5
  b. 33.0
  c. 33.5
  d. 34.0
Read 58 times
2 Replies
Replies
Answer verified by a subject expert
nadiahoque14nadiahoque14
wrote...
Posts: 311
Rep: 6 0
4 years ago
Sign in or Sign up in seconds to unlock everything for free
Answer to #1

18

Answer to #2

One

Answer to #3

J-shaped histogram has only one tail with the highest frequency as an end class. A skewed histogram has tails on both sides of the class with the highest frequency, with one tail being considerably longer.

Answer to #4

B

Answer to #5

B

Answer to #6

C

Answer to #7

A

Answer to #8

B
1

Related Topics

wrote...
A month ago
Thanks!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  76 People Browsing
 295 Signed Up Today
Related Images
  
 721
  
 200
Your Opinion
Which country would you like to visit for its food?
Votes: 118

Previous poll results: Do you believe in global warming?