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
rosijanka [135]
3 years ago
11

A child plays a video game 155 times and wins the game 32 times. What is the experimental probability that the child loses the v

ideo game?
Mathematics
1 answer:
chubhunter [2.5K]3 years ago
4 0
1 out of 5 games could be the answer
You might be interested in
Solve the equation below showing all steps.<br> 3/4 (x + 3) = 9
saul85 [17]

Answer:

x=9

Step-by-step explanation:

3/4(x+3)=9

3/4x+2 1/4=9

3/4x=6 3/4

x=9

Hope this helped :)

7 0
2 years ago
Read 2 more answers
45.60$ meal with a an 18% tip
laila [671]

Answer:

53.81

Step-by-step explanation:

if u add the tip but the tip by itself is 8.21

3 0
3 years ago
A chef bought 0.69 kilograms of almonds and 0.64 kilograms of pecans. How many
stellarik [79]

Answer: 1.33 kg

Step-by-step explanation:

8 0
3 years ago
A melting spherical block of ice has its surface area changing at the rate of 24 inch2 /sec at the time the radius is 3 inches.
emmainna [20.7K]
The surface area of the sphere is:
 A = 4 * pi * r ^ 2
 Deriving we have:
 A '= 8 * pi * r * r'
 We clear the speed:
 r '= A' / (8 * pi * r)
 Substituting values:
 r '= 24 / (8 * pi * 3)
 r '= 1 / pi inch / sec
 Then, the volume of the sphere is:
 V = (4/3) * (pi) * (r ^ 3)
 Deriving we have:
 V '= (3) * (4/3) * (pi) * (r ^ 2) * (r')
 Substituting values:
 V '= (3) * (4/3) * (pi) * (3 ^ 2) * (1 / pi)
 Rewriting:
 V '= (4) * (9)
 V '= 36 inch3 / sec
 Answer:
 
the volume of the ice is changing at 36 inch3 / sec at that moment
4 0
3 years ago
Weinstein, McDermott, and Roediger report that students who were givne questions to be answered while studying new material had
emmainna [20.7K]
<h2>Answer with explanation:</h2>

Let \mu be the population mean.

By considering the given information , we have

Null hypothesis : H_0: \mu=73.4

Alternative hypothesis :  H_a: \mu>73.4

Since alternative hypothesis is right-tailed , so the test is a right-tailed test.

Given : Sample size : n=16 , which is a small sample , so we use t-test.

Sample mean: \overline{x}=78.3  ;

Standard deviation: s=8.4

Test statistic for population mean:

t=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}

i.e. t=\dfrac{78.3-73.4}{\dfrac{8.4}{\sqrt{16}}}\approx2.333

Using the standard normal distribution table of t , we have

Critical value for \alpha=0.01 : t_{(n-1,\alpha)}=t_{(15,0.01)}=2.602

Since , the absolute value of t (2.333) is smaller than the critical value of t (2.602) , it means we do not have sufficient evidence to reject the null hypothesis.

Hence, we conclude that we do not have enough evidence to support the claim that answering questions while studying produce significantly higher exam scores.

3 0
2 years ago
Other questions:
  • All of the following numbers are rational except___
    5·1 answer
  • Which of the following will not cause a short-run shift in the supply curve? a change in the number of sellers a change in the c
    9·1 answer
  • F(x)=-4x+15<br> g(x) = 3x-6
    10·1 answer
  • Plz help me find the answers plz i love y<br>u guys so so much??<br><img src="https://tex.z-dn.net/?f=20%20%5Cdiv%202" id="TexFo
    10·1 answer
  • What are the exact solutions of x2 − 5x − 7 = 0, where x equals negative b plus or minus the square root of b squared minus 4 ti
    8·2 answers
  • Answer pls im desperate (10 pts) (how many solutions does this have)
    11·1 answer
  • Select the fraction greater than 7/9. a)4/5 b)2/3 c)13/18 d)3/5
    5·1 answer
  • Help ASAP please its due in 5 min!
    6·1 answer
  • I think of a number i subtract 13 from it my result is -5 find the number​
    6·1 answer
  • Is x = 0 a valid potential solution to the equation log(x + 2) + log(x + 5) = 1? (You don't need to solve this equation, just de
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!