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ch4aika [34]
3 years ago
10

Suppose that 20% of the employees of a given corporation engage in physical exercise activities during the lunch hour. Moreover,

assume that 60% of all employees are male, and 8% of all employees are males who engage in physical exercise activities during the lunch hour.
A. If we choose an employee at a random from this corporation,what is the probability that this person is a female who engages inphysical exercise activities during the lunch hour?
B. If we choose an employee at random from this corporation,what is the probability that this person is a female who does notengage in physical exercise activities during the lunch hour?
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
3 0

Answer:

a) 0.152 = 15.2% probability that this person is a female who engages in physical exercise activities during the lunch hour.

b) 0.248 = 24.8% probability that this person is a female who does not engage in physical exercise activities during the lunch hour.

Step-by-step explanation:

Question a:

20% of employees engage in physical exercise.

This 20% is composed by:

8% of 60%(males)

x% of 100 - 60 = 40%(females).

Then, x is given by:

0.08*0.6 + 0.4x = 0.2

0.4x = 0.2 - 0.08*0.6

x = \frac{0.2 - 0.08*0.6}{0.4}

x = 0.38

0.38 = 38%

Probability of being a female who engages in exercise:

40% are female, 38% of 40% engage in exercise. So

0.38*0.4 = 0.152

0.152 = 15.2% probability that this person is a female who engages in physical exercise activities during the lunch hour.

B. If we choose an employee at random from this corporation,what is the probability that this person is a female who does not engage in physical exercise activities during the lunch hour?

40% are female, 100% - 38% = 62% of 40% do not engage in exercise. So

0.62*0.4 = 0.248

0.248 = 24.8% probability that this person is a female who does not engage in physical exercise activities during the lunch hour.

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<u>W</u><u>e</u><u> </u><u>h</u><u>a</u><u>v</u><u>e</u><u>:</u><u>-</u>

  • P=₹26,400
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\tt \: So,amount \: for \: 2 \: years = p \large(1 +  \frac{r}{100}) {}^{n}

\tt=₹26,400 \large(1 +  \frac{15}{100}) {}^{2}

\tt=₹26,400 \:  \large( \frac{23}{20}) {}^{2}

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\tt \: So,SI \: for \: 4 \: months =   \frac{P \times R \times n }{100 \times 12}

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\bold \red{I \: hope \: this \: may \: help \: you}

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Step-by-step explanation:

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