I'm completely confused I need help asap!

Mathematics

1 answer:

anastassius [24]3 years ago

8 0

The sum of -3 and 2 would be -1. And I can't really see the one below that one. But for the last one, the product of -4 and 5 is -20 :)

You might be interested in

What is the first numbers of pi?

kirza4 [7]

3,141......
_____________________________

5 0

3 years ago

Read 2 more answers

Select each figure that appears to be a rectangle. You must select all that apply.

Archy [21]

Answer:

Step-by-step explanation:

i Believe its A. B. And D. But i could be wrong

4 0

2 years ago

Read 2 more answers

Data collected at Toronto Pearson International Airport suggests that an exponential distribution with mean value 2725hours is a

Ivan

Answer:

a) What is the probability that the duration of a particular rainfall event at this location is at least 2 hours?

We want this probability"

$P(X >2) = 1-P(X\leq 2) = 1-(1- e^{-0.367 *2})=e^{-0.367 *2}= 0.48$

At most 3 hours?

$P(X \leq 3) = F(3) = 1-e^{-0.367*3}= 1-0.333 =0.667$

b) What is the probability that rainfall duration exceeds the mean value by more than 2 standard deviations?

$P(X > 2.725 + 2*5.540) = P(X>13.62) = 1-P(X$

What is the probability that it is less than the mean value by more than one standard deviation?

$P(X$

Step-by-step explanation:

Previous concepts

The exponential distribution is "the probability distribution of the time between events in a Poisson process (a process in which events occur continuously and independently at a constant average rate). It is a particular case of the gamma distribution". The probability density function is given by:

$P(X=x)=\lambda e^{-\lambda x}$