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
Snowcat [4.5K]
3 years ago
10

You have a normal distribution of hours per week that music students practice. The mean of the values is 8 and the standard devi

ation of the values is 4. According to the normal distribution, half of the music students practice between 5.3 to 10.7 hours each week. What percentage of the students study less than 5.3 hours each week? 12.5% 20% 25% 50%
Mathematics
1 answer:
Aleks04 [339]3 years ago
5 0

Answer:

25%

Step-by-step explanation:

Since Normal Distribution is symmetrical Distribution and 5.3 and 10.7 are both 2.7 below and 2.7 above the mean respectively.

So, % of students less than 5.3 hours per week is 25%

You might be interested in
6. Use the graph that shows the percent of cat ownerswho train their cats in each category. (Examples 3 and 4)a. Out of 255 cat
Tcecarenko [31]
A. 110 owners
B. 92 owners
3 0
3 years ago
Read 2 more answers
6. Determine how each multiplication or
tangare [24]
A) 27, 81
b) -30,-15
c) -3, 1
d) -320, 1280
3 0
3 years ago
The 4 inch radius pizza for $3 or the 8inch radius pizza for $14
yan [13]

Answer: The 4 inches radius

Step-by-step explanation:

First find their unit price. Which the the price per inch.

3/4 = 0.75  

14/8  = 1.75  

6 0
3 years ago
Need the answers ljjsjwiwkskdkdksksksksksisksksksks
Serga [27]

The answer COULD possibly be letter B

4 0
3 years ago
Matt and his siblings bought their mom her favorite perfume for her birthday. They gave the cashier $80. The cashier gave them b
seropon [69]

Answer:

$64.15

Step-by-step explanation:

to solve this problem, first we should figure out how much money that the cashier gave them back, and then subtract that from $80 (which was what Matt and his siblings gave the cashier) to find out how much the perfume cost.

it is given that:

they gave the cashier $80.

the cashier gave them back 1 ten-dollar bill ($10), 1 five-dollar bill ($5), 8 dimes ($0.80 or 80 cents) , and 1 nickel ($0.05 or 5 cents)

$10+$5+$0.80+$0.05=$15.85

the total amount of money that the cashier gave them back is $15.85

to find how much the perfume cost:

$80-$15.85=$64.15

so, the perfume cost $64.15

8 0
3 years ago
Other questions:
  • The density of aluminum is 2.7 g cm3 what is its density in kilograms per cubic meter
    14·1 answer
  • Josie's Pie Shop has 20 pies for sale, including 6 chocolate cream pies.
    6·1 answer
  • Can the square root of 130 be simplified.
    14·2 answers
  • The shoe store’s clerks are paid on commission. If the clerk receives a 12% commission on total purchase amounts before tax is a
    6·2 answers
  • Solve using inverse operations 83+q=125; q=
    14·1 answer
  • The sum of the speeds of two trains is 723.1 miles per hour. If the speed of the first train is 10.9 mph faster than that of the
    11·1 answer
  • It costs $32 per day to rent a medium-sized car, plus $0.25 for each mile driven over 150 miles. The equation that represents th
    10·1 answer
  • El producto de w y 9
    13·1 answer
  • Can someone help me with this question please
    8·1 answer
  • Wendy's bill for breakfast at a restaurant was $94.She left an18% tip. What was the amount of the tip?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!