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
Stolb23 [73]
3 years ago
5

You don't have a driver's license yet, so you have to walk to the store. You can walk 1.5 miles in 24 minutes. If it

Mathematics
1 answer:
stich3 [128]3 years ago
3 0
2,000 that how long it is
You might be interested in
What is the answer for combine y and 7
Natali5045456 [20]

Answer:

7y

Step-by-step explanation:

6 0
3 years ago
What is the coefficient in the following expression?
Y_Kistochka [10]
The coefficient is 4 because it is placed before x.
7 0
3 years ago
Elisa sold 110 tickets for the football game. Adult tickets cost $2.50 and student tickets cost $1.10. If she collected $212, ho
Ganezh [65]
Is there answer choices
8 0
3 years ago
Find a 5% commission for $18,000 in sales?
weeeeeb [17]
5% of 18,000 is 900 , hope this helps.
3 0
3 years ago
Suppose we roll a fair die and let X represent the number on the die. (a) Find the moment generating function of X. (b) Use the
Likurg_2 [28]

Answer:

(a)  moment generating function for X is \frac{1}{6}\left(e^{t}+e^{2 t}+e^{2 t}+e^{4 t}+e^{5 t}+e^{6 t}\right)

(b) \mathrm{E}(\mathrm{X})=\frac{21}{6} \text { and } E\left(X^{2}\right)=\frac{91}{6}

Step-by step explanation:

Given X represents the number on die.

The possible outcomes of X are 1, 2, 3, 4, 5, 6.

For a fair die, P(X)=\frac{1}{6}

(a) Moment generating function can be written as M_{x}(t).

M_x(t)=\sum_{x=1}^{6} P(X=x)

M_{x}(t)=\frac{1}{6} e^{t}+\frac{1}{6} e^{2 t}+\frac{1}{6} e^{3 t}+\frac{1}{6} e^{4 t}+\frac{1}{6} e^{5 t}+\frac{1}{6} e^{6 t}

M_x(t)=\frac{1}{6}\left(e^{t}+e^{2 t}+e^{3 t}+e^{4 t}+e^{5 t}+e^{6 t}\right)

(b) Now, find E(X) \text { and } E\((X^{2}) using moment generating function

M^{\prime}(t)=\frac{1}{6}\left(e^{t}+2 e^{2 t}+3 e^{3 t}+4 e^{4 t}+5 e^{5 t}+6 e^{6 t}\right)

M^{\prime}(0)=E(X)=\frac{1}{6}(1+2+3+4+5+6)  

\Rightarrow E(X)=\frac{21}{6}

M^{\prime \prime}(t)=\frac{1}{6}\left(e^{t}+4 e^{2 t}+9 e^{3 t}+16 e^{4 t}+25 e^{5 t}+36 e^{6 t}\right)

M^{\prime \prime}(0)=E(X)=\frac{1}{6}(1+4+9+16+25+36)

\Rightarrow E\left(X^{2}\right)=\frac{91}{6}  

Hence, (a) moment generating function for X is \frac{1}{6}\left(e^{t}+e^{2 t}+e^{3 t}+e^{4 t}+e^{5 t}+e^{6 t}\right).

(b) \mathrm{E}(\mathrm{X})=\frac{21}{6} \text { and } E\left(X^{2}\right)=\frac{91}{6}

6 0
3 years ago
Other questions:
  • 81 2/7% answer as a fraction in simplest form
    8·1 answer
  • Which expression is equivalent to 4(3n-5)
    15·2 answers
  • Show work for this scientific notation
    12·1 answer
  • What is the GCF of 10 and 12
    14·2 answers
  • If the complex number x = 3 + bi and |x|^2 = 13, which is a possible value of b?
    7·1 answer
  • The mean amount purchased by a typical customer at Churchill's Grocery Store is $27.50 with a standard deviation of $7.00. Assum
    8·1 answer
  • What’s the square root of 45?
    10·2 answers
  • Help help help help
    5·1 answer
  • Write three linear equations. Two of the equations should be for lines that are parallel to each other. The third line should be
    7·1 answer
  • On day 1, Perry shipped packages and tracked their weight to the nearest kilogram. The packages weighed 1, 8, 1, 12, 1, 11, 7, a
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!