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Tcecarenko [31]
3 years ago
15

To control pollination, pollen-producing flowers are often removed from the top of corn in a process called detasseling. The hou

rly rates for detasselers in Iowa are roughly normally distributed, with a mean of $12/hr and a standard deviation of $2/hr.
What is the approximate probability that a detasseler makes between $13 and $17 an hour?




THE ANSWER IS 30%
Mathematics
1 answer:
Shkiper50 [21]3 years ago
3 0

i'm a vegan

                      h h h h h h h h hh h h h h

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5. Jeannette has $5 and $10 bills in her wallet. The number of fives is three more than six times the number of tens. Let t repr
rewona [7]

Answer:

6t+3

Step-by-step explanation:

If t represents the number of tens, then 6t is six times the number of tens. 3 more than that is ...

6t+3

3 0
3 years ago
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A study indicates that 62% of students have have a laptop. You randomly sample 8 students. Find the probability that between 4 a
Scrat [10]

Answer:

72.69% probability that between 4 and 6 (including endpoints) have a laptop.

Step-by-step explanation:

For each student, there are only two possible outcomes. Either they have a laptop, or they do not. The probability of a student having a laptop is independent from other students. So we use the binomial probability distribution 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.

A study indicates that 62% of students have have a laptop.

This means that n = 0.62

You randomly sample 8 students.

This means that n = 8

Find the probability that between 4 and 6 (including endpoints) have a laptop.

P(4 \leq X \leq 6) = P(X = 4) + P(X = 5) + P(X = 6)

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

P(X = 4) = C_{8,4}.(0.62)^{4}.(0.38)^{4} = 0.2157

P(X = 5) = C_{8,5}.(0.62)^{5}.(0.38)^{3} = 0.2815

P(X = 6) = C_{8,6}.(0.62)^{6}.(0.38)^{2} = 0.2297

P(4 \leq X \leq 6) = P(X = 4) + P(X = 5) + P(X = 6) = 0.2157 + 0.2815 + 0.2297 = 0.7269

72.69% probability that between 4 and 6 (including endpoints) have a laptop.

3 0
3 years ago
CAN SOMEONE HELP ME WITH THIS?
Phoenix [80]

Answer:

The answer is 938. ;}

Step-by-step explanation:

7 0
3 years ago
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Pls help<br>Solve 2/3x- 1/5&gt;1<br> ​
Juli2301 [7.4K]

Answer:

x > 9/5

Step-by-step explanation:

Step 1: Write inequality

2/3x - 1/5 > 1

Step 2: Solve for <em>x</em>

  1. Add 1/5 to both sides: 2/3x > 6/5
  2. Divide both sides by 2/3: x > 9/5

Here we see that any <em>x</em> value greater than 9/5 will work.

7 0
3 years ago
Help !!!!!!!!!!!!!!!!!!
masya89 [10]

Answer:

10/49

Step-by-step explanation:

You just have to multiply the numerators and denominators from each other, then cancel out the common factors that is 3 only.

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3 years ago
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