At a pet store, the lizards in aquarium A have a mean length of 13 cm and a range from 9 cm to 15 cm. In aquarium B. the lizards have a mean length of 15 cm and a range from 14 cm to 17 cm. Which statement BEST compares the lizards in the
two aquariums?
A:
A)
On average, the lizards in aquarium A are longer.
B)
Aquarium A has the longest lizard at this pet store.
C)
The lizards in aquarium A vary in length more than aquarium B.
D)
The lizards in aquarium B vary in length more than aquarium A.

C (The lizards in aquarium A vary in length more than aquarium B.)

C

Step-by-step explanation:

We can go through the answers and use the process of elimination.

For A, it says that lizards in A are longer. We can look at the numbers for A compared to B and see that B has longer lizards so we know that A is wrong.

For B, it says that aquarium A has the longest lizard. As we just found out, B has longer lizards so this option would be wrong as well.

Next, we can look at C, which says that lizards in A vary in length more than in aquarium B. We can check this by looking at the range for each aquarium. In A, we see that they have lengths from 9 to 15. 6 cm would be the difference. In aquarium B, we see 14 to 17. 3 would be the difference. 6 is higher than 3 so we know that aquarium A's lizards vary more than aquarium B.

In option D, we can see that this just tells us the opposite of what we just learned in C, so we know it is wrong.

Hope this helps!!

correct answer:

b.(19,-2)