Let

be the random variable for the weight of any given can, and let

and

be the mean and standard deviation, respectively, for the distribution of

.
You have

Recall that for any normal distribution, approximately 99.7% of it lies within three standard deviations of the mean, i.e.

. This means 0.3% must lie outside this range,

. Because the distribution is symmetric, it follows that

.
Also recall that for any normal distribution, about 95% of it falls within two standard deviations of the mean, so

, which means 5% falls outside, and by symmetry,

.
Together this means

Solving for the mean and standard deviation gives

and

.
Answer: Yes
Step-by-step explanation:
Given
Kwasi earned
in babysitting
He spends 40% of the money in buying drinks
Money spend is given by

So, Kwasi has enough money left to buy a skateboard.
<h3>
Answer: 36,000 meters</h3>
Explanation:
To go from km to meters, multiply by 1000
This is because 1 km = 1000 meters