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
DochEvi [55]
3 years ago
5

In a smoking survey among boys between the ages of 12 and 17, 78% prefer to date nonsmokers, 1% prefer to date smokers, and 21%

don’t care. Suppose seven such boys are selected randomly. Let X equal the number who prefer to date nonsmokers and Y equal the number who prefer to date smokers. (a) Determine the joint pmf of X and Y. Be sure to include the support of the pmf. (b) Find the marginal pmf of X. Again include the support.
Mathematics
1 answer:
Ganezh [65]3 years ago
4 0

Answer:

i think it is a

Step-by-step explanation:

You might be interested in
Find the volume for the following. Show your work and include the units.<br> 3 cm<br> 12 cm
Gemiola [76]

Answer:

12 CM is the best answer.

please thanks and follow me

7 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Alborosie

Answer:  tan(V)=2.92

Step-by-step explanation:

For this exercise you need to remember the following Trigonometric Identity:

tan\alpha =\frac{opposite}{adjacent}

You must observe the figure given in the exercise.

You can notice that the given triangle UVW is a Right triangle (because it has an angle that measures 90 degrees).

So, you can identify in the figure that:

\alpha =V\\\\opposite=UW=35\\\\adjacent=VW=12

Knowing these values, you can substitute them into  tan\alpha =\frac{opposite}{adjacent}:

tan(V)=\frac{35}{12}

Now you must evaluate:

tan(V)=2.916

Finally, rounding to the nearest hundreth, you get:

tan(V)=2.92

7 0
3 years ago
A farmer sells 8.8 kilograms of pears and apples at the farmer's market. 2 5 of this weight is pears, and the rest is apples. Ho
Snowcat [4.5K]

Answer:

5.28 kg

Step-by-step explanation:

A farmer sells 8.8 kilograms of pears and apples at the farmer's market and 2/5 of this weight is pears.

Since a fraction is a part of a whole, 1, then, the fraction repressing the weight of the apples is:

1 - 2/5 = 3/5

Therefore, the weight of apples is/

3 / 5 * 8.8 = 5.28 kg

She sold 5.28kg of apples at the farmer's market.

8 0
3 years ago
Seema had 150 marbles.rani had 20 marbles more than seema.alok had 50 marbles lass than rani how many marbles did rani have
crimeas [40]

Answer:

120

Step-by-step explanation:

seema 150 marbles

rani 20 more marbles

alok 50 less marble

150+20=170_rani

170-50=120_alok

8 0
2 years ago
At noon, a team bus left City College for their opponent's school. Soon thereafter, City's first-line player Brett Starr arrived
Zepler [3.9K]

Answer:

No, the car didn't catch the bus, as their time and distance traveled doesn't intersect when portrayed on a graph.

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Line m passes through C(-2, 0) and D(1, -3). What is the equation of the line m in standard form?
    9·1 answer
  • 3 2/3+2.3 repeating
    11·2 answers
  • HELP ASAP NOW NOW NOW NOW!!! Suppose three riders rode a total of 182 miles.
    12·1 answer
  • A microchip can process 1,280 bits of information in 3.2 x 10 (exponent) -7 seconds. How many bits of information could it proce
    8·1 answer
  • Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
    5·2 answers
  • Calculate the area of a circle with a diameter of 0, 8m​
    9·2 answers
  • Tim typed a 46-word paragraph in 3/4 of a minute. What is his typing speed per minute?
    7·2 answers
  • Find the slope of the line?
    15·1 answer
  • Solve: 2x-3 = 5(x + 6)
    6·2 answers
  • what is an equation of the line that passes through the point (-8,0) and is parallel to the line x+2y=14
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!