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
malfutka [58]
3 years ago
5

Which of the following is an example of a quantitative variable?

Mathematics
1 answer:
Mashcka [7]3 years ago
7 0

Answer:

D. the number of hours the veterinarian works a week

You might be interested in
A​ half-century ago, the mean height of women in a particular country in their 20s was 64.7 inches. Assume that the heights of​
Ainat [17]

Answer:

99.5% of all samples of 21 of​ today's women in their 20's have mean heights of at least 65.86 ​inches.

Step-by-step explanation:

We are given that a half-century ago, the mean height of women in a particular country in their 20's was 64.7 inches. Assume that the heights of​ today's women in their 20's are approximately normally distributed with a standard deviation of 2.07 inches.

Also, a samples of 21 of​ today's women in their 20's have been taken.

<u><em /></u>

<u><em>Let </em></u>\bar X<u><em> = sample mean heights</em></u>

The z-score probability distribution for sample mean is given by;

                          Z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, \mu = population mean height of women = 64.7 inches

            \sigma = standard deviation = 2.07 inches

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) 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.

Now, Probability that the sample of 21 of​ today's women in their 20's have mean heights of at least 65.86 ​inches is given by = P(\bar X \geq 65.86 inches)

  P(\bar X \geq 65.86 inches) = P( \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n} } } \geq \frac{65.86-64.7}{\frac{2.07}{\sqrt{21} } } ) = P(Z \geq -2.57) = P(Z \leq 2.57)

                                                                        = <u>0.99492  or  99.5%</u>

<em>The above probability is calculated by looking at the value of x = 2.57 in the z table which has an area of 0.99492.</em>

<em />

Therefore, 99.5% of all samples of 21 of​ today's women in their 20's have mean heights of at least 65.86 ​inches.

3 0
3 years ago
HELP MEEE PLEASE ILL MARK BRIANLIST!!!!
Aleksandr-060686 [28]
The points in order from top to bottom are :

F
E
C
H
I
5 0
3 years ago
Read 2 more answers
Cynthia wants to multiply 0.8 by a fraction less than 1. How will the product compare to 0.8? It will be 0.8.
BartSMP [9]

Answer:

Step-by-step explanation:

8 0
3 years ago
Suppose A and B represent mutually exclusive events.
mart [117]

Answer:

14/15

Step-by-step explanation:

simple

3/5 + 1/3= 14/15

4 0
2 years ago
Which of the following properties can numbers have?
mr Goodwill [35]
They definitely can be positive they can be negative and they can have an absolute value but I would choose they both can be positive and negative
6 0
3 years ago
Other questions:
  • After it is purchased, the value of a new car decreases $4000 each year. after 3 years, the car is worth $18,000.
    9·1 answer
  • What is the answers of4/2+16\4=
    13·2 answers
  • Randell's favorite brand of cookies is on sale at a price of $1.79 for a 12 ounces package. what is the cost per ounce (unit rat
    14·1 answer
  • 2. I earned $9. I bought 4 candy bars for $0.85 each. How much money do I
    14·2 answers
  • HEPL MEE, I NEED EXTREME HELP!
    9·1 answer
  • Which table represents the statement "Brian rides a bicycle at a rate of 12 meters per second"?
    15·2 answers
  • PLS HELP QUICK!!!
    9·2 answers
  • If x=7 and y=-3 xy/3 + 2
    11·1 answer
  • 5) Assume this is an acceleration graph, where the X axis represents time in seconds and the Y axis represent velocity in m/s. W
    14·1 answer
  • Let's find 1/4+1/12
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!