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
diamong [38]
2 years ago
13

The marketing club at school is opening a student store. They randomly survey 50 students about how much money they spend on lun

ch each day. What is the expected value for a student to spend on lunch each day? ‘ Number of Students Dollars spent on lunch each day 2 = 2/50 = 0.04 $10 1 = 1/50 = 0.02 $8 12 = 12/50 = 0.24 $6 23 = 23/50 = 0.46 $5 8 = 8/50 = 0.16 $4 4 = 4/50 = 0.08 $3
Mathematics
1 answer:
Luden [163]2 years ago
7 0

Answer:

The expected value for a student to spend on lunch each day = $5.18

Step-by-step explanation:

Given the data:

Number of students______$ spent

2 students______________$10

1 student________________$8

12 students______________$6

23 students______________$5

8 students_______________$4

4 students_______________$3

Sample size, n = 50.

Let's first find the value on each amount spent with the formula:

\frac{num. of students}{sample size} * dollar spent

Therefore,

For $10:

\frac{2}{50} * 10 = 0.4

For $8:

\frac{1}{50} * 8 = 0.16 l

For $6:

\frac{12}{50} * 6 = 1.44

For $5:

\frac{23}{50} * 5 = 2.3

For $4:

\frac{8}{50} * 4 = 0.64

For $3:

\frac{4}{50} * 3 = 0.24

To find the expected value a student spends on lunch each day, let's add all the values together.

Expected value =

$0.4 + $0.16 + 1.44 +$2.3 + $0.64 + $0.24

= $5.18

Therefore, the expected value for a student to spend on lunch each day is $5.18

You might be interested in
What is the slope of the line?<br> A. -2<br> B. -1/2<br> C. 1/2<br> D. 2
Alexxandr [17]
To find the slope, you can either use the slope equation:
(y2-y1) / (x2-x1)
{I would recommend you remember this because you'll need to know this in the future}

or,

Just count. A slope is rise over run, so you see how far up the slope goes from one point to the other, (1), and then you see how far sideways the slope goes (2). 
Going right, the slope is naturally declining downwards, so it's a negative.

The answer is B. -1/2.
6 0
3 years ago
A store owner received 18 cases of soda. Each case has 24 cans of soda. The owner sells each can for $0.60. Which number sentenc
Radda [10]

Answer:

Total money get from soda cans = $259.2

Step-by-step explanation:

Given:

Number of soda cases = 18

Number of soda can in each case = 24

Price of each soda can = $0.60

Find:

Total money get from soda cans

Computation:

Total money get from soda cans = Number of soda cases x Number of soda can in each case x Price of each soda can

Total money get from soda cans = 18 x 24 x 0.60

Total money get from soda cans = $259.2

8 0
2 years ago
Please help me solve!-
ruslelena [56]
R=17

5(17-2)=75

5(15)=75

75=75
4 0
2 years ago
What is the possible arrangement for 22 students
lord [1]

\bf \stackrel{Permutations}{_nP_r=\cfrac{n!}{(n-r)!}}~\hspace{6em}\stackrel{\textit{22 units arranged in groups of 22}}{_{22}P_{22}=\cfrac{22!}{(22-22)!}} \implies _{22}P_{22}=\cfrac{22!}{0!} \\\\\\ _{22}P_{22}=\cfrac{22!}{1}\implies _{22}P_{22}=22!\implies _{22}P_{22}=1124000727777607680000

8 0
3 years ago
If 6/10r=6/7, then what is<br>r?​
crimeas [40]

Answer:

<em>Answer is </em><em>10</em><em>/</em><em>7</em>

Step-by-step explanation:

[tex] (\frac{6}{10} )r = \frac{6}{7} \\ cancelling \: 6 \: on \: both \: sides \\ (\frac{1}{10} )r = \frac{1}{7} \\ \frac{r}{10} = \frac{1}{7} \\ r = \frac{10}{7} \: \\

<em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>.</em>

7 0
2 years ago
Other questions:
  • Let n be the smallest positive integer that is a multiple of 75 and has exactly 75 positive integral divisors, including itself
    7·1 answer
  • Geometry math question
    12·2 answers
  • Dan, David, Thor, and Charles together clean out evil from 60 cities. Dan cleaned up 0.25 of the cities, David cleaned up 12 of
    10·1 answer
  • For the function, f(x)=13x7+9x6−5x5−10x4+7x3−23x2+x−17 , state the possible number of: Positive Real Zeroes
    9·1 answer
  • What Is 2+2 :)<br>what Is 5+5​
    12·2 answers
  • Which is a perfect square?<br> O 5<br> 0001<br> O<br> 36<br> 44
    15·1 answer
  • A person stands 15 feet from the base of a building. The height of the building is 27 feet. Find the distance from the person to
    11·1 answer
  • Which of the following functions is NOT a polynomial function?
    13·1 answer
  • 100 POINTS AND BRAINLIEST TO WHOEVER SOLVES IT
    11·2 answers
  • Find the value of F (0)=
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!