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
kondaur [170]
3 years ago
5

Brett golfs for the forestville knights high school team. When he practices his putting, he can make a 10-foot putt 80% of the t

ime. If Brett takes 200 putts for practice, what is the standard deviation of the number of putts he will make?
Mathematics
1 answer:
balu736 [363]3 years ago
4 0
The formula to calculate standard deviation from probability is \sqrt(n*p*(1-p)). n is the sample size, and 200 in this case (number of putts for practice). p is 80% or 0.8, the probability that he can make it. So the standard deviation is \sqrt(200*0.8*(1-0.8)=\sqrt(200*0.8*0.2)=\sqrt(16)=4.
You might be interested in
Addy bought a new shirt and she had a 20% off coupon . The coupon took $8.25 off of the price of her shirt. What did she pay wit
zloy xaker [14]

Answer:

$33

Step-by-step explanation:

Given: Addy had 20% off coupon.

           The coupon took $8.25 off of the shirt price.

Lets assume the original cost of shirt be "x".

We know Addy had 20% off coupon, which help to reduce the price of shirt by $8.25.

∴ We can form an equation to know the original price of shirt.

⇒\frac{20}{100} \times x= \$ 8.25

⇒\frac{1}{5} \times x= \$ 8.25

Multiplying both side by 5

⇒x= 8.25\times 5

∴ x= \$ 41.25

Hence, The original cost price of shirt was $41.25.

Next, finding the price paid by Addy for her new shirt by reducing coupon discount from the cost of shirt.

Price paid by Addy for her new shirt= \$ 41.25- \$ 8.25= \$ 33

Hence, Addy paid $33 for her new shirt.

8 0
3 years ago
Miss Conrads art class was painting murals she had four bottles of red paint five bottles of green paint for bottles of yellow p
Ksenya-84 [330]

Answer:

she had lots of paint

Step-by-step explanation:

ur welcome boo

8 0
3 years ago
Which graph represents y= ^3 square root of x +2?
yaroslaw [1]

Answer:

<h2>Hi there !</h2>

\huge\orange\star\:\huge\begin{gathered}{\underline{\boxed{\mathcal{\pink{Answer}}}}}\end{gathered}

y =  \sqrt[2]{x}+2 \: will \: pass \: through \: (0 \:, 2) \: and \: ( - 8 \:, 0)

Step-by-step explanation:

Hope it helps ya~

Stay safe, stay healthy and blessed

Have a good day!

Thank you

6 0
1 year ago
Please help me with this statistics question!!
Dmitry_Shevchenko [17]

a statistic question is with multiple answers

4 0
3 years ago
The relationship between 650 and 65
Brrunno [24]

Answer:

The ratio is 10 : 1, or 10 to 1

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Find the slope of a line that is perpendicular to the line 4x + 3y - 15 = 0. -3/4 4/3 3/4
    15·1 answer
  • Describe how to model 2 digit by 2 digit multiplication using an area model
    5·1 answer
  • There are 32 adults and 20 children in the school play. What is the ratio of children to people at the school play?
    6·1 answer
  • Find the product. -mnp(3m - 5n 7p)
    15·2 answers
  • What expression is equivalent to 15 + 80?
    15·2 answers
  • 25x - 20y= -100<br><br> x-intercept:__________<br> y-intercept:__________
    14·1 answer
  • Which expression is equivalent to One-fifth (150 x minus 80 y + 50 minus 50 x minus 25 y + 20)?
    15·2 answers
  • The function D(t) defines a traveler's distance from home, in miles, as a function of time, in hours. Which times and distances
    12·1 answer
  • You buy 3.7 pounds of trail mix. The mix costs ​$2.99 per pound. What is the total price for the trail​ mix?
    7·1 answer
  • 4/9 - 2/5 give answer in its simpliest form
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!