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lesya692 [45]
2 years ago
5

The Sport Journal (Winter 2004) reported on a study of a speed-training program for high school football players. Each participa

nt was timed in a 40-yard sprint both before and after training. The researchers measured two variables: (1) the difference between the before and after sprint times (in seconds), and (2) the category of improvement ("improved," "no change," and "worse") for each player. What is the type for the variable "improvement"?
A. Ordinal
B. Interval
C. Ratio
D. Nominal
Mathematics
1 answer:
ruslelena [56]2 years ago
7 0

Answer:

Ordinal

Step-by-step explanation:

The definition of ordinal type of variables states that "if the variable has meaningful ordering or the data values of variable can be arranged in ranking then the variable is ordinal"

Here are some examples of ordinal variable to have a clear idea about it.

i) Ratings of product i.e. Excellent,good,fair, worse.

ii) Grades in exam i.e. A,B,C,D and F.

iii) Ranks in army.

iv) Ranks in sports team.

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What is 23% of 256? please help
Anastasy [175]
So first you need to turn the percent into a decimal. So 23% would be 0.23 because you divide 23 by 100 to turn it into a decimal. Now you multiply 0.32 and 256. So:

0.23 *256=58.88 

So your answer would be 23% of 256 is 58.88. I hope this helps! =)
7 0
3 years ago
Does anyone know this
Arturiano [62]

Answer:

C

Step-by-step explanation:

Option C is the correct answer.

8 0
2 years ago
I can't seem to figure this out
antiseptic1488 [7]

Answer:

c. 4

Step-by-step explanation:

tan (30)/1 = x/7 *cross multiply*

x = 7 (tan(30))

x = 4.04

x = 4

6 0
3 years ago
Marco is carrying two cylinder-shaped cans. Each can has the same height
Dafna11 [192]

Answer:

Choice D

Step-by-step explanation:

The Cavalieri's principle states that if two or more solids have identical cross-sectional area as well as height, then the solids will have equal volume.

Therefore, the volumes of the cylinders are the same

8 0
3 years ago
Read 2 more answers
An accounting machine operator wanted to divide an 85-minute job between two identical machines so that one machine would take o
Lubov Fominskaja [6]
To find how much time the machine that took the longer job is, you would create an equation in terms of X, the amount of time it takes one of the machines.

Please see the attached picture for the work.

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6 0
3 years ago
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