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3 years ago

From a well shuffled deck of 52 cards, the probability of NOT drawings a red-face card is ______.

Mathematics

1 answer:

Gnom [1K]3 years ago

5 0

Answer:

Option "d" might be 11/13

Step-by-step explanation:

Red face cards=8. ( heart and Diamond)

Remove this 8 cards from 52 cards which gives

=>44

Toal cards =52

PROBABILITY = 44/52=>11/13

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A bank sampled its customers to determine the proportion of customers who use their debit card at least once each month. A sampl

Zinaida [17]

Answer:

(0.084,0.396)

Step-by-step explanation:

The 99% confidence interval for the proportion of customers who use debit card monthly can be constructed as

$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

$p=\frac{x}{n}$

$p=\frac{12}{50}$

$p=0.24$

$q=1-p=1-0.24=0.76$

$\frac{\alpha }{2} =\frac{\0.01 }{2}=0.005$

$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

$0.24-z_{0.005} \sqrt{\frac{0.24*0.76}{50} }$

$0.24-2.58(0.0604)$

$0.24-0.155832$

By rounding to three decimal places we get,

$0.084$

The 99% confidence interval for the proportion of customers who use debit card monthly is (0.084,0.396).

3 0

3 years ago

NEED HELP ASAP!! ...........

alexdok [17]

Answer:

i have no clue how to do thats,

5 0

2 years ago

Read 2 more answers

Find the number that makes the ratio equivalent to 1:9.

nirvana33 [79]

Answer:

2/18

Step-by-step explanation:

8 0

2 years ago

Expand the expression <br><br><br> -7(k - 3)

Illusion [34]

How can I help you?
−
7

(
k
−
3
)
-
7

(
k
-
3
)
Solve

4 0

3 years ago

Plz help me well mark brainliest if correct!!..

zepelin [54]

Answer: A/The LINE graph

Step-by-step explanation:

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3 years ago