Answer the question to the best of your ability.

The chart below shows the distribution of weeds in yard

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?