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dexar [7]
3 years ago
6

Variance 0.7775

Mathematics
2 answers:
nadezda [96]3 years ago
6 0

Answer:

0.88175960442

Step-by-step explanation:

The square root of 0.7775 is 0.88175960442

rewona [7]3 years ago
4 0

Answer:

0.88

Step-by-step explanation:

To find the standard deviation square root the variance,

SD=\sqrt{0.7775}\\ SD= 0.88

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Please help! <br>What is the answer to this question?<br>​
valentinak56 [21]

Answer:

b. 80

Step-by-step explanation:

5 0
2 years ago
A store makes a profit of $15 on a wallet, after a mark up of 60%, what is the selling priceof the wallet?
Ivenika [448]

Answer:

Markup: $9 ; Selling Price: $24

Step-by-step explanation:

The store makes a profit of $15, to find the mark up of 60%, multiply 15 x 60%.

15 x 0.6 = 9

Add the markup price to the original price.

9 + 15 = $24

The selling price is $24

4 0
3 years ago
The question is..........
garri49 [273]
10-5=5 and 16-10=6 then you multiply 6x5
the answer is 30 Because you have to multiply L x W 

5 0
3 years ago
A multiple-choice standard test contains total of 25 questions, each with four answers. Assume that a student just guesses on ea
weqwewe [10]

Answer:

a)  8*88*10⁻⁶ ( 0.00088 %)

b) 0.2137 (21.37%)

Step-by-step explanation:

if the test contains 25 questions and each questions is independent of the others, then the random variable X= answer "x" questions correctly , has a binomial probability distribution. Then

P(X=x)= n!/((n-x)!*x!)*p^x*(1-p)^(n-x)

where

n= total number of questions= 25

p= probability of getting a question right = 1/4

then

a) P(x=n) = p^n = (1/4)²⁵ = 8*88*10⁻⁶ ( 0.00088 %)

b) P(x<5)= F(5)

where F(x) is the cumulative binomial probability distribution- Then from tables

P(x<5)= F(5)= 0.2137 (21.37%)

7 0
3 years ago
I'd appreciate it if anyone could help me!
kvv77 [185]

let's recall that corresponding angles are equal, thus 105° twins, also let's recall that a flat-line has 180°.

since the two sides stemming from Ɣ are twins, the angles they make at the base are also twins, bearing in mind that a triangle has a sum of all interior angles of 180°.

6 0
3 years ago
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