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Leni [432]
3 years ago
15

On a december day, the probability of snow is .30. the probability of a "cold" day is .50. the probability of snow and "cold" we

ather is .15. are snow and "cold" weather independent events?
Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
7 0
Events A and B are independent if the following holds true:

P(A ∩ B) = P(A) * P(B)

where P(A ∩ B) is the probability of A and B, P(A) is the probability of A, and P(B) is the probability of B.

Setting A = "snow" and B = "cold weather", and plugging in the above numbers will give you the answer.
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Identify the lower class​ limits, upper class​ limits, class​ width, class​ midpoints, and class boundaries for the given freque
bezimeni [28]

Answer:

See explanation and results below.

Step-by-step explanation:

We have the following data:

Age​ (yr) when award was won Frequency 25​-34 31 35​-44 36 45​-54 12 55​-64 4 65​-74 6 75​-84 1 85​-94 2

If we order the data we got the following result. We assume that the midpoint is given by:

Midpoint= \frac{L.Limit +U.Limit}{2}

The Class.Width = U.Limit-L.Limit

And the limits are given by the lower and upper limit.

L.Limit  U.Limit Class W  Midpoint  Frequency   Limits

  25         34     34-25=9     29.5           31           [25-34]                

  35         44      44-35=9     39.5          36           [35-44]

  45         54      54-45=9     49.5           12           [45-54]

  55         64      64-55=9     59.5           4            [55-64]

  65         74       74-65=9     69.5           6            [65-74]

  75          84      84-75=9     79.5            1            [75-84]

  85          94      94-85=9     89.5           2           [85-94]

8 0
3 years ago
HELP ME IF RIGHT MARK BRAINLY
aalyn [17]

Answer:

A. m+7n+14

Step-by-step explanation:

Add parenthesis to help simplify.

(5m-4m)+(22-8)+7n

Simplify the expression.

m+7n+14

7 0
3 years ago
there are 250 chairs and 150 chairs are full what is the percentage of occupied chair what is the percentage of non occupied cha
asambeis [7]

Answer:

What is p% of x?

What is

150

%

of

250

?

y =

375

what is p% of x? formula

Step-by-step explanation:

8 0
3 years ago
You need to put your reindeer, Lancer, Gloopin, Rudy, and Bloopin, in a single-file line to pull your sleigh. However, Gloopin a
Arte-miy333 [17]

Answer:

12

Step-by-step explanation:

5 0
3 years ago
−5(p+3/5)=−4 solve for p
defon

Answer: p = 1/5

Step-by-step explanation:

-5(p + 3/5) = -4

Distribute

-5p - 3 = -4

Add 3 to both sides

-5p = -1

Divide by -5 on both sides

p = 1/5

3 0
3 years ago
Read 2 more answers
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