Answer:
She should use the variance and standard deviation
Step-by-step explanation:
In order to make her results statistically significant, the student has to use statistical methods to check the results. In this way, the student will be able to determine whether there is a clear correlation between her results. In addition, using the standard deviation would be a useful tool to check whether her data will not be very much scattered throughout the distribution. By using the standard deviation, she will be able to see how far her data moves away from the mean or average.
Total amount she wants to raise = $3200
Amount she'll get for each kilometer = $35
So, number of kilometers she need to run
= Total amount she wants to raise/Amount she'll get for each kilometer
= $3200/$35
= 91.42....
Since her sponser is will donate only for whole kilometers she'll have to run 92 km.