maggie9459
20.07.2019 •
Mathematics
Apet store sells mice reptiles and birds let event a = a customer buys a mouse let event b = a customer buys a reptile what does p(a or b) = 0.25 mean in the term of this problem
a
b
c
or d
Solved
Show answers
More tips
- H Health and Medicine How to Tan in a Tanning Bed? Tips and Recommendations...
- W Work and Career What is the Most In-Demand Profession in the Modern World?...
- A Auto and Moto How Can Parking Sensors Help Drivers?...
- H Health and Medicine What is the Normal Blood Sugar Level in a Healthy Person?...
- F Food and Cooking Red Caviar: How to Choose the Best?...
- C Computers and Internet Clearing Cache: How to Speed Up Your Browser...
- S Style and Beauty How are artificial nails removed?...
- S Style and Beauty Secrets of Tying a Pareo: 5 Ways...
- F Food and Cooking Everything You Need to Know About Pasta...
Answers on questions: Mathematics
- M Mathematics Please help me now plz I will mark you brainliest...
- M Mathematics What is the volume of this container?...
- M Mathematics The function f(x)=60(1.5)x models an animal population after x years. how does the average rate of change between years 3 and 6 compare to the average rate of change between...
- M Mathematics Lexi started her homework at 4: 30 pm she finshed at 5: 05 pm how many seconds did it take her to finish her homework...
- M Mathematics Can someone step by step me with this. i am learning this and need...
- M Mathematics Who is reallly smart in math for realll that can me...
- M Mathematics Find the product of (2x + 5y)(2x − 5y). 4x2 − 20xy + 25y2 4x2 + 20xy + 25y2 4x2 + 25y2 4x2 − 25y2...
- M Mathematics Michelle went on a hike. she started on the trail at 6: 45 am and returned at 3: 28 pm how long did she hike...
- M Mathematics If g(x) = x2 - 2x, find g(4n) a. 8n b. 8n2 c. 16n2-8n d. 248n...
- M Mathematics 2+2×0= 2 looking to verify this prob. i say its 2 2×0 is 0+2= 2 correct...
Ответ:
The correct option is C.
Step-by-step explanation:
According to the question given in the attached picture:
Event A = a customer buys a mouse
Event B = A customer buys a bird
P(A or B) = 0.25
Now have a look at the probability P(A or B). Here or means either..Its means that the customer will purchase either a mouse or a bird. That means that there is 0.25 or 25% probability that the customer will purchase either a mouse or a bird. In this case there are only 3 choices, which are: the customer will either purchase a mouse, a bird or a reptile because the pet store has only these three possible outcomes. We are not told that how much of each animal they have. Thus the probability that the customer will either purchase either a mouse or a bird is 0.25 or 25%. That means that the probability of either purchasing a mouse or a bird is added together which is 0.25 or 25%
Thus the correct option is C
Ответ:
answer: 60
step-by-step explanation:
1/2a + (2/3×30) = 50
1/2a + 20 = 50
1/2a = 30
a = 60