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
garri49 [273]
3 years ago
7

John Glenn High School has approximately 1000 students. A survey randomly asked 20 students if they regularly buy lunch. Of thos

e asked, 8 said yes. The table shows their answers when asked what their favorite food is and about how many times each month they buy it.
What portion of students purchased their favorite food more than four times a month. Write your answer as a simplified fraction.


b. What is the mean number of times a student bought their favorite food? Round your answer to the nearest tenth.



c. Predict how many students from John Glenn regularly buy lunch and purchase their favorite food more than four times a month. Round your answer to the nearest whole number.



d. What is the mean number of times that a student regularly buys a salad? Round to the nearest tenth.

Mathematics
1 answer:
lutik1710 [3]3 years ago
5 0

Answer:

Here we have the table for the 8 students that said yes.

a) Out of the 8 students, 5 purchased their favorite food more than four times a month.

The proportion will be p = 5/8, and this can not be simplified anymore because 5 is a prime number and 5 is not a factor of 8.

b) The mean time will be equal to the amount of each of the 8 purchased their favourite food divided by the total sample (8)

This is:

m = (6 + 4 + 3 + 8 +6 + 9 + 4 + 7)/8 = 5.875

c) Out of a sample of 20, 8 buy lunch regularly, this is; p1 = 8/20

The amount of students that regularly buy food will be:

p1*1000 = (8/20)*1000 = 400

And of those 400, 5/8 buy their favourite lunch more than 4 times per month:

(5/8)*400 = 250

d: The mean number of times that a student regularly buys salad.

We have 3 students that regularly buy salad (so we only do the math with those 3)

The mean is (8 + 6 + 7)/3 = 7

So for the students that regularly buy salad, the mean of times that the buy salad in a month is 7 times.

You might be interested in
Which fraction is equivalent to the whole number 8?<br> A.1/8<br> B.2/10<br> C.12/8<br> D.16/2
Tom [10]

Answer:

D: 16/2

Step-by-step explanation:

you take 16 and divide it by 2 making your answer 8

8 0
3 years ago
What is 2x(y+5)=2.5y<br> What is 2x(y+5)=2.5y
White raven [17]

Answer:

simplify: 2.5 =(y+5)

reorder the terms: 2.5y=(5+y)

remove the parenthesis: 2.5y=5+y

solving: 2.5y=5+y

move all terms containing y to the left, all other terms to the right.

add -1y to each side of the equation

2.5y+-1y=5+y+-1y

combine like terms 2.5y+-1y=1.5y

1.5y=5+y+-1y

combine like terms: y+-1y=0

1.5y=5+0

1.5y=5

divide each side by 1.5

y=3.333333333

simplifying

y=3.333333333

Step-by-step explanation:

8 0
3 years ago
Mark has no basketballs. cat has eight basketballs and Sophia has six balls how many do they have all together?
Aleks04 [339]

14 because Mark has none, Cat has 8 and Sophia has 6 so 8+6=14.

4 0
3 years ago
What is the domain range and zeros of the graph ?
marusya05 [52]

The domain is how far the graph stretches horizontally (on the x-axis).

Domain:  ( -∞ , ∞ )  or  -∞ < x < ∞

The range is how long the graph stretched vertically (on the y-axis).

Range:  ( -∞ , 2 ]  or  -∞ < y ≤ 2

The zeros are where the graph intersects with the x-axis. In other words, the x-values when y=0.

Zeros:  x = -1  and  x = 3

8 0
3 years ago
G the population of a town today is 48000 people. if the population decreases with a constant rate of change and the decrease is
tiny-mole [99]
The population in ten years will be 208,000
5 0
3 years ago
Other questions:
  • Identify the dependent variable in the statement: the speed you walk and the time it takes to complete your mile walk.
    7·1 answer
  • 10. Using Base 10 blocks, show &amp; explain how to divide 35 (3 longs and 5 units) by 5. (DRAW
    8·1 answer
  • Rory is driving 584 miles to a family reunion. She will drive half of the distance by herself the first day. The second day, Ror
    6·1 answer
  • 5^3/5^7 leaving your answer in index form
    12·1 answer
  • How do I compare and order the following numbers 5.2, -5.6 repeating, 3 9/10, and the square root of 21?
    14·1 answer
  • Choose scales for the coordinate plane shown so that you can graph the points J(2,40), K(3,10), L (3 -40) M(-4, 50), and N(-5, -
    15·1 answer
  • Help help helpppppppppp
    12·1 answer
  • Need help with this math question
    7·1 answer
  • Available is 23 cm taller than Olivia is half the height of Luca. If lucas is 1.77m tall, how tall are available and Olivia? Exp
    6·2 answers
  • Estimate 91,315 - 45,195 by first rounding each number to the nearest thousand.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!