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Answer:
Required Probability = 0.97062
Step-by-step explanation:
We are given that the weights of newborn baby boys born at a local hospital are believed to have a normal distribution with a mean weight of 4016 grams and a standard deviation of 532 grams.
Let X = weight of the newborn baby, so X ~ N()
The standard normal z distribution is given by;
Z = ~ N(0,1)
Now, probability that the weight will be less than 5026 grams = P(X < 5026)
P(X < 5026) = P( <
) = P(Z < 1.89) = 0.97062
Therefore, the probability that the weight will be less than 5026 grams is 0.97062 .
Divide the amount of teenagers that smoked by the total population:
Multiply this decimal by 100 to convert into a percentage:
To round to the nearest decimal place, look at the hundredths value:
8.53
3 > 5
8.53 -> 8.5
8.5% of teenagers reported that they smoked at least one cigarette.
Multiply this decimal by 100 to convert into a percentage:
To round to the nearest decimal place, look at the hundredths value:
8.53
3 > 5
8.53 -> 8.5
8.5% of teenagers reported that they smoked at least one cigarette.