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
Iteru [2.4K]
3 years ago
14

A national survey showed that 44% of college students drink. A professor provided his own survey by choosing a random sample of

244 students and found that 96 of them drink. Is this an unusual result contradicting the national survey or it is in line with it? Answer the question by determining how far away the proportion is from 44% in terms of standard deviations.
Mathematics
1 answer:
mamaluj [8]3 years ago
4 0

Answer:

It is an unusual result contradicting the national survey.

Step-by-step explanation:

National survey showed 44% of college students who drink.

The professor's survey showed that 96/244 = 39% drink.

The professor's survey deviated from the national survey is 5% (44% - 39%) representing about 0.25% (5% squared) variance.

Standard deviation is the spread of a set of numbers from their mean.  In other words, it measures how far an observed value is from the mean. It can be calculated by getting the square root of the variance.

You might be interested in
How do you do long division how do you do long division on 35 / 2
deff fn [24]
<span><span>   17
</span><span>2 35
</span>   2
<span>   15
</span><span>   14
</span><span>    1
The remainder ends up to be 1. So it is 17.5. All you need to do, is to look for LCM in 35 and 2. </span></span>
5 0
3 years ago
Read 2 more answers
Is triangle AXY inscribed in circle A? <br> yes no
Ratling [72]

Answer:

Δ AXY  is not inscribed in circle with center A.

Step-by-step explanation:

Given: A circle with center A

To find: Is Δ AXY inscribed in circle or not

A figure 1 is inscribed in another figure 2 if all vertex of figure 1 is on the boundary of figure 2.

Here figure 1 is Δ AXY with vertices A , X and Y

And figure 2 is Circle.

Clearly from figure, Vertices A , X and Y are not on the arc/boundary of circle.

Therefore, Δ AXY  is not inscribed in circle with center A.

8 0
3 years ago
Read 2 more answers
Someone please help me will give BRAILIEST!!!!!!
asambeis [7]
The answer to this problem is  2/5
6 0
2 years ago
Read 2 more answers
I am thinking of a number. if you divide my number by 3 and add -3 you get 4 what is my number
Butoxors [25]
Your number is 21.
21 divided by 3 is 7. 7 plus -3 is 4.
7 0
2 years ago
the polynomial 10x 3 + 35 x 2 -4 x -14 is Factor by grouping what is the common factor that is missing both sets of parentheses​
My name is Ann [436]

Answer:

Step-by-step explanation:

10x^3 + 35x^2 - 4x - 14

5x^2(2x + 7) - 2(2x + 7)

(5x^2 - 2)(2x + 7)

5 0
3 years ago
Other questions:
  • There was 320 girls and 180 boys what is the percentage of girls
    10·2 answers
  • What will the temperature be in degrees Fahrenheit when it is 80° Celsius outside?
    7·2 answers
  • I need help with my math
    11·1 answer
  • Will the measurements represent the side lengths of a right triangle?
    6·2 answers
  • A little help here ^-^
    13·2 answers
  • Answer this pleaseee !!
    13·2 answers
  • (b) An angle measures 77º. What is the measure of its supplement?
    5·2 answers
  • Write an equation of the line that passes through the points (−3,−4) and (0,2).
    9·2 answers
  • Evaluate each expression by replacing the variable with 8. Show each step. (8 marks) 2n - 6
    10·1 answer
  • Go to your math tools and open the Graph tool to graph the equation you found for calculating profit. Set the scale of the graph
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!