Question

99.7 of all newborn babies in the United States weigh between

Answer 1

Answer:

2000-5000 g

Step-by-step explanation:

Averagely, the weight of a new born baby is 7.5 lb, which is equal to 3.5 kg.

Converting this weight in kg to grams,

3.5 kg = 3.5 *1000 = 3500 g

From the answer choices, the value will range from 2000 g-5000 g

Answer 2

Using the Empirical Rule, it is found that 99.7% of all newborn babies in the United States weigh between 2 kg and 5 kg.

What is the Empirical Rule?

It states that, for a normally distributed random variable:

• Approximately 68% of the measures are within 1 standard deviation of the mean.

• Approximately 95% of the measures are within 2 standard deviations of  the mean.

• Approximately 99.7% of the measures are within 3 standard deviations of the mean.

Researching the problem on the internet, it is found that the mean is of 3.5 kg and the standard deviation is of 0.5 kg, hence:

3.5 - 3 x 0.5 = 2 kg

3.5 + 3 x 0.5 = 5 kg

99.7% of all newborn babies in the United States weigh between 2 kg and 5 kg.

To learn more about the Empirical Rule, you can check https://brainly.com/question/24537145