Answer: 17
Step-by-step explanation: There are 34 squares in the blue figure each one is 0.5 cm. So what we do is multiply 0.5 x 34 which gives us the answer of 17.
Answer:
Option A, 1.7
Step-by-step explanation:
<u>Step 1: Figure out the base</u>
The base of an exponent is the number on the bottom. For example, if the given choice was
, then the base would be 50. However, since we are given
, then the was would be 1.7
Answer:
![E(X) = \sum_{i=1}^n X_i P(X_i)](https://tex.z-dn.net/?f=%20E%28X%29%20%3D%20%5Csum_%7Bi%3D1%7D%5En%20X_i%20P%28X_i%29%20)
And replacing we got:
![E(X) = 1*0.05 +2* 0.3 +3* 0.4 +4*0.25 = 2.85](https://tex.z-dn.net/?f=%20E%28X%29%20%3D%201%2A0.05%20%2B2%2A%200.3%20%2B3%2A%200.4%20%2B4%2A0.25%20%3D%202.85)
So we are going to expect about 2,85 automobiles for this case.
Step-by-step explanation:
For this case we define the random variable X as "number of automobiles lined up at a Lakeside Olds dealer at opening time (7:30 a.m.)" and we know the distribution for X is given by:
X 1 2 3 4
P(X) 0.05 0.30 0.40 0.25
The expected value of a random variable X is the n-th moment about zero of a probability density function f(x) if X is continuous, or the weighted average for a discrete probability distribution, if X is discrete
For this case we can calculate the epected value with this formula:
![E(X) = \sum_{i=1}^n X_i P(X_i)](https://tex.z-dn.net/?f=%20E%28X%29%20%3D%20%5Csum_%7Bi%3D1%7D%5En%20X_i%20P%28X_i%29%20)
And replacing we got:
![E(X) = 1*0.05 +2* 0.3 +3* 0.4 +4*0.25 = 2.85](https://tex.z-dn.net/?f=%20E%28X%29%20%3D%201%2A0.05%20%2B2%2A%200.3%20%2B3%2A%200.4%20%2B4%2A0.25%20%3D%202.85)
So we are going to expect about 2,85 automobiles for this case.
if your wanting to know how far the diver will be down you do 240+25 which is 265
265-80=185 (cause the diver swims up)
185+12+30 =227
227-16 =211
the deep see diver is at 211 meters below the surface
When y = 4, x = 12...that means x is 3 times bigger than y. So if y = 1, then x will now = 1 x 3 = 3