Suppose S and T are mutually exclusive events. Find P(S or T). P(S) = 20%, P(T) = 22%

Answers

Answer 1

Answer: S and P are mutually exclusive events.
P ( S ) = 20% = 0.20
P ( T ) = 22 % = 0.22
The probability of mutually exclusive events:
P ( S or T ) = P ( S ) + P ( T )
P ( S or T ) = 0.20 +0.22 = 0.42
Answer: The probability of ( S or T ) is 0.42 or 42 %.

Answer 2

Answer:

The probability of event S or event T is 42%.

What is the probability of event S or event T?

Mutually exclusive events are independent events. Independents events are events whose occurrence do not depend on each other.

The probability of event S or event T = 20 + 22 = 42%

To learn more about mutually exclusive events, please check: brainly.com/question/13075229

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Tamara likes to mix and match her 4 scarves, 3 pairs of gloves, and 2 hats. The colors are in the table. On Monday, she randomly picks out a scarf, hat, and a pair of gloves. What is the probability of Tamara choosing a pair of brown gloves and a red hat?clothes
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Answers

I'll assume that each item has different colors.

4 scarves : 1/4 probability
3 pairs of gloves : 1/3 probability
2 hats : 1/2 probability

probability of choosing a pair brown gloves and a red hat

1/3 * 1/2 = 1/6

A quarterly telephone bill consist of N$79.15 rental plus 4.7 cents for each dialled unit. Sales tax is added at 15%. What is the total bill for Mrs. Jones who used 915 dialled units?

Answers

Answer:

$140.48

Step-by-step explanation:

Let x represent dialed units.

We have been given that a quarterly telephone bill consist of $79.15 rental plus 4.7 cents for each dialed unit.

4.7 cents = $0.047

Cost of dialing x units would be $0.047x$ .

Total cost of dialing x units would be $0.047x+79.15$ .

Let us find cost of dialing 915 units by substituting $x=915$ in above expression.

$0.047(915)+79.15$

$43.005+79.15$

$122.155$

Now, we will find 15% of sales tax as:

$122.155* (15)/(100)$

$122.155* 0.15$

$18.32325$

Total bill: $18.32325+122.155=140.47825\approx 140.48$

Therefore, Mrs. Jonas's bill would be $140.48.

$4.7 × 915 = 4300.5
$4300.5 + 79.15 = 4379.65
15% of 4379.65 = 656.9475
4379.65 + 656.9745 = 5036.6245
Mrs. Jones' Bill was $5036.63
(Rounded to the nearest 1/10)

Which of the following are the factors of m2 – 14m + 48?A. (m – 12)(m – 4)
B. (m – 12)(m + 4)
C. (m + 6)(m + 8)
D. (m – 6)(m – 8)

Answers

The answer is D. (m-6)(m-8) hope this helped!

D. (m-6)(m-8)

This is as...
-6 + -8 = -14
-6 * -8 = 48

You can also work out the answer by expanding the brackets.

A stereo costs £320. In a sale it is reduced by 25%. What is the sale price?

Answers

$320* (75)/(100) =320 * (25* 3)/(25* 4) =320* (3)/(4) = 80* 4 * (3)/(4) =80* 3 = \boxed {240}$

How do I round 5.673839 to the nearest 100th

Answers

5.673839
anything 5 or more to the right of the # boosts it up a # so...
5.673---7 being 100th would = 5.67

if you round this it will be 5.67

if there are 26 students in each third-grade class and 3 third grade classes in the school, how many students will attend an assembly for third graders if total of 4 student's are absent

Answers

Answer: There are 74 students of third grade attend an assembly .

Step-by-step explanation:

The number of students in third grade classes = 26

The number of third classes in the school = 3

Therefore, the total number of students of third grade in the school = $3*26=78$

Now, it 4 students are absent then the number of third grade students in the school = $78-4=74$

Hence, there are 74 students of third grade attend an assembly .

there will be 74 students

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