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3 years ago

The x-coordinate of the plotted point is . The y-coordinate of the plotted point is .

Mathematics

1 answer:

solmaris [256]3 years ago

4 0

X-coordinate: -.50
Y-coordinate: -.55

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certain computer virus can damage any file with probability 35%, independently of other files. Suppose this virus enters a folde

Ksivusya [100]

Answer:

0.623 is the probability that between 800 and 850 files get damaged.

Step-by-step explanation:

We are given the following information:

We treat virus can damage computer as a success.

P( virus can damage computer) = 35% = 0.35

The conditions for normal distribution are satisfied.

By normal approximation:

$\mu = np = 2400(0.35) = 840\\\sigma = \sqrt{np(1-p)} = \sqrt{2400(0.35)(1-0.35)} = $$23.36$

We have to evaluate probability that between 800 and 850 files get damaged.

$P(800 \leq x \leq 850) = P(\displaystyle\frac{800 - 840}{23.36} \leq z \leq \displaystyle\frac{850-840}{23.36}) = P(-1.712 \leq z \leq 0)\\\\= P(z \leq 0.428) - P(z < -1.712)\\= 0.666 - 0.043 = 0.623 = 62.3\%$

$P(800 \leq x \leq 850) = 62.3\%$

0.623 is the probability that between 800 and 850 files get damaged.

8 0

3 years ago

Suzan bought some balloons and repacked them for sale. He threw away 76 balloons each. Each packet was sold at $86. After sellin

In-s [12.5K]

Answer:

188 balloons

Step-by-step explanation:

First, we have to divide the amount he collected altogether by the price of each balloon that he sold to find out how many balloons he sold:

9632 / 86 = 112 balloons

She sold 112 balloons.

We know that she threw 76 balloons away, therefore, the number of balloons she bought was:

112 + 76 = 188 balloons

4 0

2 years ago

Can someone tell me some word problems already solved? dividing and multiplying decimals and integers by 100,10 and 1000. I need

const2013 [10]

Answer:

wait im a little confused sorry but im going to try my best

Step-by-step explanation:

50x2=100. 5×2=10. 500x2=1,000

1,000÷10=100. 100÷10=10. 10,000÷10=1,000

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2 years ago

Find the slope given<br> the ordered pairs:<br> (-3,-2) and (-3,-5)

Mademuasel [1]

Step-by-step explanation:

$- 2 - - 5 \\$

$\div - 3 - - 3$

5 0

2 years ago

Question 9 (1 point)

Lisa [10]

Step-by-step explanation:

the answer is on the photo above

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3 years ago