Answer:it’s 12
Step-by-step explanation:
You did:
5 episodes / 4 hours = 1.25 episodes/hour
You found how many episodes they watched in one hour, when you should have found how many hours they watched one episode. This is because you need to find how long it took them to watch 24 episodes.
So instead:
4 hours / 5 episodes = 0.8 hours/episode
Then you multiply 0.8 and 24 = 19.2 hours
Answer:
(-x+3)+(x+5)= -x+3+x+5. =now add the numbers -x+8+x = now combined like terms = 8 now 8 is the answer
Answer:
4 im not 100% but i think so
Step-by-step explanation:
Answer:
a. z-score = -1.2
b. The age 23 years old is -1.2 standard deviations below the mean
c. The age is not unusual
Step-by-step explanation:
a. Transformation to z-score
Mathematically;
z-score = (x - μ)/σ
where σ and μ are the standard deviation and the mean respectively.
From the question, x = 23, μ = 27.2 and σ = 3.5
Let’s put these into the equation;
z-score = (23-27.2)/3.5 = -1.2
b. Interpretation of result
The interpretation is that 23 years old is -1.2 standard deviations below the mean
c. Determination
The age is not unusual. This is because any z-value below -2 or above 2 is considered unusual
-1.2 is above -2 and thus it is not unusual