On his way to work, a man notices that 9 of the 16 traffic lights are green. is there statistical significance to say that these traffic lights are programmed to allow ease of travel?

yes, because the results are unlikely to occur by chance.
yes, because the man encountered a high number of green traffic lights.
no, because the man didn't encounter enough traffic lights on this trip for a valid sample size.
no, because the results are likely to occur by chance.

The answer is No, the results are likely to occur by chance.

Step-by-step explanation:

On his way to work, a man notices that 9 of the 16 traffic lights are green. Is there statistical significance to say that these traffic lights are programmed to allow ease of travel:

The answer is No, because the results are likely to occur by chance.

As the number of green and non-green lights are approximately the same so we can't judge anything regarding the ease to travel.

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt

b. hoped i'm right lol

step-by-step explanation: