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3 years ago

What is the area of the shady sector

Mathematics

1 answer:

Tpy6a [65]3 years ago

4 0

What shady sector?

Sorry i'll answer the question when I see the picture

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help solve this problem Based on a poll, 62% of Internet users are more careful about personal information when using a public

erma4kov [3.2K]

Answer

The probability that among four randomly selected Internet users, at least one is more careful about personal information when using a public Wi-Fi hotspot is 0.979.

Step-by-step explanation:

Since 62% of Internet users are more careful about personal information when using a public Wi-Fi hotspot.

Therefore, the Probability of 62% of Internet users are more careful about personal information when using a public Wi-Fi hotspot is, p=0.62.

We have to find the probability that at least one user is more careful about personal information when using wi-fi hotspot.

Probability of internet users are not more careful about personal information when using a public wi-fi hotspot, i.e $q=1-p$

$q=1-0.62=0.38$

Use Binomial Distribution, i.e, $P\left ( X \right )=^nC_xp^xq^\left ( n-x \right )$

p=0.62, q=0.38, n=4.

Required Probability $P\left ( X\geq 1 \right )=P\left ( X=1 \right )+P\left ( X=2 \right )+P\left ( X=3 \right )+P\left ( X=4 \right )$

$P\left ( X\geq 1 \right )=1-P\left ( X=0 \right )$

=1- $^4C_0p^0q^\left ( 4-0 \right )$

=1- $4\cdot1\cdot q^\left ( 4-0 \right )$

=1- $4\cdot \left ( 0.38 \right )^4$

=1-0.02085136=0.97914864

Therefore, the probability that at least one users more careful about personal information when using wi-fi hotspot, i.e 0.979(approx).

RESULT:

<u>The result should not be impacted by this because volunteers are likely to have the most relevant responds.</u>

6 0

3 years ago

the formula F = 1.8C + 32 gives the temperature in degrees Fahrenheit (F) for a given temperature in degrees Celsius (C). There

IRISSAK [1]

The answer is -40 but I don't remember how to calculate that, sorry.

3 0

3 years ago

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Denver is planting strawberry seedlings in a new garden. He can plant 3 rows of a certain length with 2 seedlings leftover or 4

Deffense [45]

Given:

Denver can plant 3 rows of a certain length with 2 seedlings leftover or 4 rows of the same length with 3 seedling spots left empty.

To find:

The equation for the given problem and its solution.

Solution:

Let x be the length of each row.

Denver can plant 3 rows of a certain length with 2 seedlings leftover.

Total number of seeds he has = $3x+2$ ...(i)

Denver can plant 4 rows of the same length with 3 seedling spots left empty.

Total number of seeds he has = $4x-3$ ...(ii)

Using (i) and (ii), we get

$3x+2=4x-3$

Isolate variable terms.

$2+3=4x-3x$

$5=x$

Therefore, the required equation is $3x+2=4x-3$ and the values of x is 5. Each row is 5 meters long.

3 0

3 years ago

If Mr. Smith allowed you to retake your final exam , what score would you have to get on the final exam to make at least a 90% i

Aleks [24]

It depends on how many questions there are.

6 0

2 years ago

An inequality that contains at least one variable

soldier1979 [14.2K]

Answer: x-4 ≥12

Step-by-step explanation:

Hi, to answer this question we have to know what an inequality and a variable are:

Inequality: An inequality is a expression that compares two values, showing if one is less than, greater than, or simply not equal to another value.

Variable: is a symbol for a number that is unknown: they usually are letters (x;y).

An inequality that contains at least one variable could be:

x-4 ≥12

5 0

3 years ago

Read 2 more answers