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3 years ago

6

In a natural population of bugs living on balloon vine in Baton Rouge, Louisiana, female beak length ranged from 6.5 to 9.5 mm w

ith a mean at 8 mm. How well does this distribution fit your expectation

1 answer:

sp2606 [1]3 years ago

4 0

Answer:

This distribution mostly fit my expectation but the beak length of 6.5mm size may not able to reach the seed

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A square table 4 feet on each side has two drop leaves, each a semicircle 4 feet in diameter.

lisov135 [29]

Answer:

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Step-by-step explanation:

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3 years ago

Approximately 5% of calculators coming out of the production lines have a defect. Fifty calculators are randomly selected from t

baherus [9]

Answer:

0.2611 = 26.11% probability that exactly 2 calculators are defective.

Step-by-step explanation:

For each calculator, there are only two possible outcomes. Either it is defective, or it is not. The probability of a calculator being defective is independent of any other calculator, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

5% of calculators coming out of the production lines have a defect.

This means that $p = 0.05$

Fifty calculators are randomly selected from the production line and tested for defects.

This means that $n = 50$

What is the probability that exactly 2 calculators are defective?

This is P(X = 2). So

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 2) = C_{50,2}.(0.05)^{2}.(0.95)^{48} = 0.2611$

0.2611 = 26.11% probability that exactly 2 calculators are defective.

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3 years ago

Which of the following represents a function that is reflected over the x-axis and shifted up 3

Travka [436]

Answer:

Option 2.

Step-by-step explanation:

f(x) = - x^2 + 3

The parent function is x^2

- the '-' before the x^2 reflects it in the x-axis, and the + 3 shifts it up 3 units.

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3 years ago

Combining transformations result in interesting designs.<br><br> True False

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True is the correct answer Hope this helped =)

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3 years ago

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AlekseyPX

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2. If you see that little square that equals to 90 degrees so it’s the same thing as the adjacent
3. and M should be the line between V and T

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3 years ago