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
yuradex [85]
3 years ago
8

The mean spent on lottery tickets is normally distributed with a mean of $6.50 and a standard deviation of $2.25. If one custome

r is randomly selected, find the probability they will spend between $4 and $9.50
Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
7 0
First, we have to find the z scores of $4 and $9.50.
Z₁ = ($4 - $6.50)/$2.25 = -1.11
Z₂ = ($9.50 - $6.50)/$2.25 = 1.33

Then, using a z score table, we find the probability of 1.33 and -1.11, and subtract them to determine the probability in between.
0.9082 - 0.1335 = 0.7747 or 77.47%.
You might be interested in
PLEASEE HELPP MEEEEE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Ksju [112]
G(x)=x^{2}+2
7 0
3 years ago
Read 2 more answers
A firm produces 16,200 units at a total cost of $37,585.60. Find the cost per unit to the nearest cent.
Julli [10]
There are a total of 16 200 units with a total costs of 37 585.60 dollars. Now, Given with the choices for the answer, let's find out which one is correct. To be able to get the answer, simply divide the total costs, with the total number of units.  => 37 585.60 dollars  / 16 200 units  => 2.3201 dollars per unit.Next, we need to round this cents to the nearest given options.Since the number next to hundredths is less than 5 , the let's round it to : => 2.32. - this is the correct answer.<span>
</span>
3 0
3 years ago
If x + 2 is the only factor of the polynomial P(x),then P(2) is:
Levart [38]

Answer:

The answer is R(2).

Step-by-step explanation:

hope this helped!

4 0
2 years ago
Marie plants 12 packages of vegetable seeds in a community garden. Each package costs $1.97. What is the total cost of the seeds
umka21 [38]

Answer:

$23.64

Step-by-step explanation:

Each package of seeds cost $1.97, and Maire bought and planted 12 packages. You would do 12 x 1.97 to get 23.64

8 0
3 years ago
Read 2 more answers
What two different expressions can be simplified to 3m-8?
ss7ja [257]
There are many ways a problem can be simplified. You can divide by the GCF (Greatest Common Factor) or even factor which depending on where you are in math you may or may not have learned. For your problem, I will use the first method. 

3m-8 can be multiplied by any term (keep it simple):

2(3m-8) = 6m-16
4(3m-8) = 12m-32

Your answers should be 6m-16 and 12m-32. 
6 0
3 years ago
Other questions:
  • What percent is 608 of 845
    10·2 answers
  • What is the first step in solving the inequality StartFraction m minus 2 Over 6 EndFraction &lt; –1? A.Multiply both sides by 6.
    5·2 answers
  • Your teacher ask you to find a recipe that includes two ingredients with a re-share the 1/2 cup and 1/8 cup
    8·1 answer
  • ZA and B are supplementary
    14·1 answer
  • A player kicks a soccer ball resting on the ground. The height of the ball, h(t) in feet, after t seconds can be represented by
    11·2 answers
  • Can someone plsss help?
    8·2 answers
  • Simplify 6^7/6^5 in index form
    13·2 answers
  • The difference between two numbers is -11 . Their sum is -17 . Find the numbers.
    15·1 answer
  • Round 5 358 708 to the nearest million​
    14·1 answer
  • What is the value of 780/60
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!