# Last year a man wrote 142 checks. Let random variable x represent the number of checks he wrote in a day, and assume it has a Poisson distribution. What is the mean number of checks written per day?

## What is the standard deviation? The variance?

Then teach the underlying concepts
Don't copy without citing sources
preview
?

Write a one sentence answer...

#### Explanation

Explain in detail...

#### Explanation:

I want someone to double check my answer

Describe your changes (optional) 200

1
Dec 15, 2017

##### Just asked! See more
• 9 minutes ago
• 9 minutes ago
• 11 minutes ago
• 11 minutes ago
• 2 minutes ago
• 3 minutes ago
• 5 minutes ago
• 6 minutes ago
• 8 minutes ago
• 8 minutes ago
• 9 minutes ago
• 9 minutes ago
• 11 minutes ago
• 11 minutes ago