CAHSEE Math 2.4 Statistics, Data, and Probability II

We just have to go through the potential answers here one by one until we can crown a winner.

So… A. “Both houses have the same amount of kitchen and bath space.”

Ooh… tricky.

Both houses have the same PERCENTAGE of square feet in their kitchen and bathroom

– but the 2nd house is twice the size of the first – so A is false.

B. “House 1 has more bedroom space than house 2."

Same as A - house 1 is bigger on a percentage basis, but because house 2 is twice the size,

B is false as well.

Ok… C. “House 1 has half the bedroom space of house 2.”

Well, no. The percentages are different – if they’d both been 40% then yeah, C would

be true, but in this case… nope.

D. “The two homes' living rooms have a combined floor space of 1,000 square feet.”

Well, let’s do the math.

35% of a 2,000 square foot home is 700 square feet… and then 30% of a 1,000 square foot

home is 300 square feet – add ‘em and we indeed have a thousand.

Ding ding ding! The answer is D.