1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Jet001 [13]
3 years ago
14

The probability that it will snow on the last day of January is 85%. If the probability remains the same of the first eight day

of February, what is the probability that it will snow AT LEAST five of those days in February?
Mathematics
1 answer:
MrRa [10]3 years ago
5 0

Answer:

Here, we have:

P(5 days snow in this 8 days) = 8C5 x (0.85)^5 x (1 - 0.85)^3 = 0.084

P(6 days snow in this 8 days) = 8C6 x (0.85)^6 x (1 - 0.85)^2 = 0.238

P(7 days snow in this 8 days) = 8C7 x (0.85)^7  x (1 - 0.85)^1  = 0.385

P(8 days snow in this 8 days) = 8C8 x (0.85)^8 x (1 - 0.85)^0 = 0.272

Add up those above, then the probability that it will snow AT LEAST five of those days in February:

P = 0.084+ 0.238 + 0. 385 + 0.272 = 0.979

Hope this helps!

:)

You might be interested in
Help me please with this<br> Simplify.<br><br> 5a-12a
Oduvanchick [21]
It helps to imagine the variable a sort of as a unit. Like with 5 minus 12 lemons, it has no bearings on the addition/subtraction here.

Factor out a and subtract.

5a-12a \\ (5-12)a \\ \boxed{-7a}
4 0
3 years ago
Simplify -1-18<br> -<br> (18)<br> O - |18|<br> 0-18<br> O 18
sertanlavr [38]

Answer:

simplify -1-18

Step-by-step explanation:

Subtract  18  from −1

− 19

6 0
2 years ago
Choose the best score on a quiz. 24 points out of 42 24 points out of 42 75 points out of 135 75 points out of 135 150 points ou
stellarik [79]

Answer:

150/250

Step-by-step explanation:

24/42, 75/135, 150/250, and 75/150 I believe is what you're asking. We know 75/135 is better than 75/150 so 75/150 is out of the equation. If we multiple 75/135 by 2 we get 150/270 which is more than 150/250, so 75/135 is out of the equation. Now to compare 24/42 and 150/250 we can divide their fractions, if we divide 24/42 we get 0.57, so 57%. If we did 150/250 we get 0.6 or 60%. So 150/250 is the best score.

8 0
2 years ago
Read 2 more answers
The temperature in frostville was at 50*F at midnight,and it dropped at a constant rate for the next 10 hours.
bazaltina [42]

After 10 hours the temperature is shown on the graph as 30 degrees.

50 degrees - 30 degrees = 20 degrees.

The temperature dropped 20 degrees in 10 hours.

Divide the change by the time:

20 degrees / 10 hours = 2 degrees per hour.

Because the temperature dropped, the change would be negative.

The answer is D. -2 degrees per hour.

5 0
3 years ago
A card is drawn at random from a standard deck of cards. What is the probability that the card is black or a face card
LenaWriter [7]

Answer:

there is a 26 out of 52 of a chance

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Yuri has a rope 12m long. he cuts it into pieces that are each 2m long. what fraction of the rope is one piece
    5·1 answer
  • Gordon wants to buy 3 2/5 cups of almonds. There are 1 7/10 cups of almonds in each package. How many packages of almonds should
    9·1 answer
  • how much would $100 invested at 8% interest compounded annually be worth after 15 years? Round your answer to the nearest cent.
    6·2 answers
  • What is the reciprocal of 2/9
    7·2 answers
  • Need help filling in the blanks.. comparing depreciation methods.
    12·1 answer
  • Rohit achieved 80% of his sales target last month. His target was to sell 30 items. How many items did Rohit sell?
    6·2 answers
  • A resort hotel has $20,000,000 to invest it its next location. There are three potential sites for the expansion. The cost to bu
    12·1 answer
  • Which expression has the greatest value?
    9·2 answers
  • Which relation is a function?
    9·1 answer
  • How do u find the pints of best fit ?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!