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
Elis [28]
3 years ago
8

I have a very relaxing break playing Solitaire as often as I could. After playing 500 games, my success rate is 49%. How many ga

mes do I need to win to increase my success rate to 50%?
Mathematics
1 answer:
lukranit [14]3 years ago
4 0

Answer:

5 more games to be won for the 50% success rate.

Step-by-step explanation:

Total number games played = 500

Number of successful games = 49% of 500

                                                 = 500 × \frac{49}{100}

                                                 = 245

Number of successful games for the success of 50% = 500 × \frac{50}{100}

                                                                                        = 250

Therefore, number of game you have to win more = 250 - 245

                                                                                    = 5 games

You might be interested in
Sodas in a can are supposed to contain an average 12 oz. This particular brand has a standard deviation of 0.1 oz, with an avera
hoa [83]

Answer:

The probability is  P(X <  12) =  0.99286

Step-by-step explanation:

From the question we are told that

        The population mean is \mu  =  12 \ oz

         The  standard deviation is  \sigma =  0.1 \ oz

          The sample mean is  \= x =  12.1 \ oz

          The sample size is  n = 6 packs

   

The standard error of the mean is mathematically represented as

              \sigma_{\= x } =  \frac{\sigma}{\sqrt{n} }

substituting values

            \sigma_{\= x } =  \frac{0.1}{\sqrt{6} }

            \sigma_{\= x } =  0.0408

Given that the can’s contents follow a Normal distribution then then  the probability that the mean contents of a six-pack are less than 12 oz is mathematically represented as

         P(X <  12) =  P ( \frac{X - \mu }{ \sigma_{\= x }}  < \frac{\= x - \mu }{ \sigma_{\= x }}  )

Generally  \frac{X  - \mu }{ \sigma_{ \= x }}   =  Z (The  \ standardized \  value \ of  \ X )

So

         P(X <  12) =  P ( Z < \frac{\= x - \mu }{ \sigma_{\= x }}  )

substituting values

       P(X <  12) =  P ( Z < \frac{12.2 -12 }{0.0408}  )

      P(X <  12) =  P ( Z < 2.45   )

From the normal distribution table the value of P ( Z < 2.45   ) is  

           P (Z < 2.45)0.99286

=>   P(X <  12) =  0.99286

4 0
3 years ago
A toy store retailer charges $26.88 for a board game. He marks up his goods by 25% before selling them. What was the cost of the
Semenov [28]

Answer:

21.50

Step-by-step explanation:

Let C = cost before markup

1.25 C = 26.88

C = 26.88/1.25 = 21.50

8 0
2 years ago
What is equivalent to (b+6)3?​
arlik [135]

3(b+6) = 3*b + 3*6 = 3b + 18

5 0
3 years ago
How do you solve x/2=2/5
Anarel [89]
You multiply 2 and 2, and then divide it by 5
3 0
3 years ago
A manufacturer plans on building a better mousetrap. There is a 60% chance the mouse trap will produce a profit of $200,000 for
Vlada [557]
The answer is
<span>C) The expected value is $100,000, so the company should build the mousetrap. </span>
3 0
4 years ago
Other questions:
  • Simplify the expression. Write your answers in positive exponents only.
    8·1 answer
  • In three to four sentences,define price discrimination and give one example
    14·2 answers
  • Assume that there are four consumers A, B, C, and D, and the prices that each of them is willing to pay for a glass of lemonade
    14·1 answer
  • Which expression is equivalent to 18a+12b+9a+24b ?
    14·1 answer
  • Lyle and Tom are each buying houses just outside of Austin. Lyle has excellent credit,
    15·1 answer
  • Prove: AAB
    14·1 answer
  • How many solutions does −6(x+7)=−4x−2 have?
    8·1 answer
  • HELP giving brainlest and there are more points for this question
    6·1 answer
  • Help Please<br> 2(-1+-4)-d^2
    8·1 answer
  • 4. If they make $404,300, how many tickets have they sold?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!