Mariela runs a small side business making fleece vests for dogs (so cute!). Using data from past years, she estimates the amount she’ll sell in any given month is Normally distributed with a mean of $470 and a standard deviation of $58. The monthly cost of buying materials is also Normally distributed, with a mean of $300 and a standard deviation of $45. What is the probability that Mariela makes a profit of at least $250 in a random month?

Mariela runs a small side business making fleece vests for dogs (so cute!). Using data from past years, she estimates the amount she’ll sell in any given month is Normally distributed with a mean of...

Mariela runs a small side business making fleece vests for dogs (so cute!). Using data from past years, she estimates the amount she’ll sell in any given month is Normally distributed with a mean of $470 and a standard deviation of $58. The monthly cost of buying materials is also Normally distributed, with a mean of $300 and a standard deviation of $45. What is the probability that Mariela makes a profit of at least $250 in a random month?

Jun 09, 2022