All categories

2 years ago

Please help! Q and R are mutually exclusive events. If P(Q)=0.1 and P(R)=0.45, find P(Q or R).

Mathematics

2 answers:

Natasha2012 [34]2 years ago

7 0

0.45 x 0.1 = 0.045 is the correct answer. Hope I helped.

Scilla [17]2 years ago

4 0

I want to say that it is A) 0.550

I'm pretty sure that you only multiply when it says and, as in P(Q and R).
P(Q or R) means that you add the two probabilities.

0.1 + 0.45 = 0.550

Correct me if I am wrong though. I was never very good with probability.

You might be interested in

What is the quantity proportional to 18/6

mario62 [17]

Answer:

18/6=3

Step-by-step explanation:

18/6÷3=6/2

6/2=3

7 0

3 years ago

ILL MARK AS BRAINLIST IF U GET IT RIGHT it’s khan

Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

given that x and y are proportional, they can be expressed as y = rx, where r is the proportionality constant. Thus, we can solve for r by doing y/x in any given point.

$\frac{8}{1.6} = \frac{15}{3} = \frac{22}{4.4} = 5$

8 0

3 years ago

An isosceles triangle has two sides of equal length, a, and a base, b. The perimeter of the triangle is 15.7 inches, so the equa

Nat2105 [25]

Answer:

Step-by-step explanation:

b must not be an even number

2a>b

a+b>a

so b could be 3.1, 3.3, ......7.7

6 0

3 years ago

Amy needs to buy 12 notebooks and a pack of pens from the store. The pack of pens cost $2.50 and she has a budget of $30. Which

sweet [91]

I think it’s c, because if the . next to the 12 means x then yes. There should be an c near 12 because we have no clue how much the notebooks are. If the . doesn’t mean x then it should be d.

3 0

2 years ago

Which of the following is the graph of y= - x + 1

Ksivusya [100]

Answer:

See picture below

Step-by-step explanation:

To graph properly, remember that:

The y intercept of the function, is the value of the function when x=0, and tells (in this case y=1 is the intercept). Locate this point in the graph.
The x intercept, which is the value of x when y=0 is x=1. Locate it in the graph.
You now have two points of a straight line: join this two points and you would have done it!

5 0

2 years ago