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anygoal [31]
4 years ago
10

A card is randomly selected from a standard deck. What is the probability that a club or the queen of hearts is selected?

Mathematics
1 answer:
valentinak56 [21]4 years ago
4 0

Answer:1/52   One out of 52 (there are 52 cards in a deck, right?)

Step-by-step explanation:

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If random samples of size 525 were taken from a very large population whose population proportion is 0.3. The standard deviation
marissa [1.9K]

Answer: 0.02

Step-by-step explanation:

Given: Sample size : n= 525

The population proportion P=0.3

Then, Q=1-P=1-0.3=0.7

The formula to calculate the standard error is given by :-

S.E.\sqrt{\dfrac{PQ}{n}}

\Rightarrow\ S.E.=\sqrt{\dfrac{0.3\times0.7}{525}}=0.02

Hence, the standard deviation of the sample proportions (i.e., the standard error of the proportion) is <u>0.02</u>.

7 0
3 years ago
Edgar Anderson earns $300 per week plus 15% commission on all sales over 1,000. if Mr. Anderson's sales for one week are 2,500 w
vredina [299]
Since he only makes commission on sales over $1000, he makes commission on $1500 (we find this by doing 2500-1000.) His commission is 15%, so find 15% of $1500:
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So we know how makes $225 in commission.

Now we need to add this to his fixed pay to get his total pay:
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So his total pay is $525, which is answer 'a' 

Hope I helped, and let me know if you have any questions :)
3 0
4 years ago
What is the value of (-2)4?<br> What is the value of (-2) squared4
Vlada [557]
The value of (-2)4 = -8
The value of (-2)^2 (4)= 16
4 0
3 years ago
Which set of three angles could represent the interior angles of a triangle? *
oksian1 [2.3K]
Use the triangle angle theorem:
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If you use the theorem you should get the first one 19,70,91
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3 years ago
If 4 + 6 = 10, does (4 + 6) X 3= 10 X 3? Why or why not?​
spayn [35]
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3 0
3 years ago
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