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DiKsa [7]
4 years ago
12

Suppose that you randomly draw one card from a standard deck of 52 cards. after writing down which card was drawn, you place the

card back in the deck, shuffle the deck, and draw another card. you repeat this process until you have drawn 15 cards in all. what is the probability of drawing at least 5 spades?
Mathematics
1 answer:
cestrela7 [59]4 years ago
4 0
5:15 because you aren't drawing all of the 52 cards so your proportion would be the probability of drawing at least 5 spade and the 15 cards drawn in all
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Find the mean, median, and mode(s) of the data. Choose the measure that best represents the data. 31, 35, 2, 32, 27, 35
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Mean : 27
median : 31.5
mode : 35
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3 years ago
What expression is equivalent to 13-(-21)?
Naddik [55]

Answer:

34

Step-by-step explanation:

13-(-21) = 13 + 21 = 34

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31. Six men can do a piece of work in 8 hours.
Alja [10]

Answer:

I think the answer is A. I hope that is right

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3 years ago
A magazine provided results from a poll of 2000 adults who were asked to identify their favorite pie. Among the 2000 ​respondent
nadya68 [22]

Answer:

\r p = 0.11

\r  q =  0.89

n = 2000

E = \pm 5

p - population proportion

\alpha  = 5%

Step-by-step explanation:

From the question we are told that  

   The  sample size is  n  = 2000

   The  proportion of the population for chocolate pie is  p_c  = 0.11

   The  margin of error is  E =  \pm 5%  

Now in the question we are asked to provide the meaning of  

       \r p ,  \r q ,  n ,  E , and\   p

Now  \r  p is the sample proportion of the population that those  chocolate​ pie as  favorite pie of   which is given from the question as 0.11

Now

         \r q is the sample  proportion of the population that choose other pies apart from chocolate pie as their favorite and it is evaluated as

      \r q =  1 - \r p

      \r q =  1 - 0.11

       \r q = 0.89

       n is the sample size which is given as  n =  2000

       E is the margin of  error which given as  E =  \pm  5%

       p is the population proportion

Given that the confidence level is  95 %  then the level of significance is  mathematically evaluated as

        \alpha =(100 - 95)%

        \alpha  =5%

   

4 0
4 years ago
How to factor x^3 - 4x^2 - 9x + 36 by grouping
const2013 [10]

Answer:

(x-4) (x-3) (x+3)

Step-by-step explanation:

x^3 - 4x^2 - 9x + 36

Make 2 groups

x^3 - 4x^2            - 9x + 36

We can factor out x^2 from the first group and -9 from the second group

x^2 (x-4)    - 9(x-4)

Now factor out (x-4)

(x-4) (x^2 -9)

This may be an answer choice but we can still factor

(x^2 -9) is the difference of squares

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Replacing this

(x-4) (x-3) (x+3)

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4 years ago
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