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2 years ago

PLEASE HELP!!!

1 answer:

6 0

For this specific problem, the standard error of the mean for a sample of 70 students would be 1.3745. I am hoping that this answer has satisfied your query about and it will be able to help you, thank you and have a nice day.

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(1 point) 6 cards are drawn at random without replacement from a standard deck. Be accurate to 7 decimal places. a) Find the pro

V125BC [204]

Answer:

a) P=0.0000843

b) P=0.0000454

c) P=0.0066113

Step-by-step explanation:

6 cards are drawn at random without replacement from a standard deck.

a) We calculate the probability that all the cards are hearts.

We calculatethe number of possible combinations:

$C^{52}_6=\frac{52!}{6!(52-6)!}=20358520$

We calculate the number of favorable combinations:

$C_6^{13}=\frac{13!}{6!(13-6)!}=1716$

Therefore, the probability is

$P=\frac{1716}{20358520}\\\\P=0.0000843$

b) We calculate the probability that all the cards are face cards.

We calculatethe number of possible combinations:

$C^{52}_6=\frac{52!}{6!(52-6)!}=20358520$

We calculate the number of favorable combinations:

$C_6^{12}=\frac{12!}{6!(12-6)!}=924$

Therefore, the probability is

$P=\frac{924}{20358520}\\\\P=0.0000454$

c) We calculate the probability that all the cards are even.

We calculatethe number of possible combinations:

$C^{52}_6=\frac{52!}{6!(52-6)!}=20358520$

We calculate the number of favorable combinations:

$C_6^{24}=\frac{24!}{6!(24-6)!}=134596$

Therefore, the probability is

$P=\frac{134596}{20358520}\\\\P=0.0066113$

7 0

2 years ago

Simple Question: What is 5x6-3/9?

Pavlova-9 [17]

Solve the multiplication first then the division and the subtract them to get something like this:
$30- \frac{1}{3}
= \frac{89}{3}$
which simplifies to 29.7 (3 significant figure )

6 0

2 years ago

SELECT ALL The Points that are on the Graph of the line 3x + 2y = 28 (:

Oksana_A [137]

<h2>Answer:</h2>

<h2>Step-by-step explanation:</h2>

points are on the graph of the line:-

$\tt{3x+2y=28 }$ ⠀

we get,

$\rightsquigarrow$ $\tt{ 2y=28-3x }$ ⠀

$\rightsquigarrow$ $\tt{y=\dfrac{28-3x}{2} }$ ⠀

In,(0,14)

If we put the value ,x=0

y= $\tt{\dfrac{ 28-3×0}{2}=\dfrac{28}{2}=14 }$

So,we get one point,(0,14)✔

In,(2,11)

If we put ,x=2

y= $\tt{\dfrac{28-3×2}{2}=\dfrac{28-6}{2}=\dfrac{22}{2}=11 }$

so,we get another point (2,11)✔

in other given ponts{(1,12),(4,9),(8,4)},It is impossible. ⠀ ⠀

5 0

2 years ago

Read 2 more answers

Herman saves 22% of his monthly paycheck so he can buy a new car. He earned $825 last month. How much money did Herman save for

djyliett [7]

Answer:$181.5

Step-by-step explanation:

8 0

2 years ago

How many dots are in the 4th step?

Mkey [24]

Answer:

Step-by-step explanation:

if you look at the diagram the dot goes up 1 each. It also makes another row which makes 4 rows total. Since 3 contains 7 dots and 3 rows we would do 8 in 4 rows. 8 x 4 is 32.

Hope this helped!

7 0

1 year ago

Read 2 more answers