Ask question

Ask question

All categories

soldier1979 [14.2K]

3 years ago

14

Write using exponential notation. 3.3.4.4.4.4

1 answer:

Lemur [1.5K]3 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

the mgf of a random variable x is e^3(e^t-1). Find P[mean - standard deviation squared < X < 1/2( mean + standard deviatio

postnew [5]

The given MGF is that for a random variable following a Poisson distribution with parameter $\lambda=3$ .

This means $\mathbb E(X)=\mathbb V(X)=\lambda$ , and $X$ has PMF

$f_X(x)=\begin{cases}\dfrac{3^xe^{-3}}{x!}&\text{for }x\ge0\\0&\text{otherwise}\end{cases}$

So, the desired probability is

$\mathbb P\left(\lambda-\lambda^2$

This is equivalent to

$\displaystyle\sum_{x=0}^2\mathbb P(X=x)=\sum_{x=0}^2\frac{3^x}{x!e^3}=\frac{17}{2e^3}\approx0.4232$

8 0

3 years ago

A building casts a shadow 10 ft long. A statue in front of the building casts a shadow 2.5 ft long. If the statue is 15 ft tall,

Gelneren [198K]

3.75

10 ft - 2.5
Half of 2.5 is 1.25.

2.5 + 1.25 = 3.75

4 0

3 years ago

Triangle P Q R is shown. The length of P Q is 20 and the length of P R is 12. Angle Q P R is 68 degrees and angle P Q R is 36 de

Tom [10]

Answer:

<h2> 112.3 square units</h2>

Step-by-step explanation:

Find the sketch of the triangle attached.

Area of the triangle = $\frac{1}{2}|PQ| |PR| sinQPR$

Given PQ = 20, PR = 12 and ∠QPR = 68°

Area of the triangle = 1/2 * 20 * 12 * sin68°

Area of the triangle = 120sin68°

Area of the triangle = 112.26 square units

Area of the triangle ≈ 112.3 square units (to the nearest tenth of a square unit)

3 0

2 years ago

Read 2 more answers

Bob is 9 years older than his dog

hram777 [196]

Omg bob is a cool dog

7 0

2 years ago

Sandy spent half of her allowance going to the movies. She washed the family car and earned 9 dollars. What is her weekly allowa

Alex17521 [72]

Well since she first used half of her allowance all we do is just 9-14=5 and 5*2=10 so we now kn ow that her allowance is of 10 bucks.

4 0

3 years ago