Understanding Normal Distribution in Newborn Weights

What is the mean weight of newborn babies in the given distribution?

• 5.5 pounds

• 6.7 pounds

• 8.1 pounds

• 7.5 pounds

Which tool is used to calculate the probability of weights between 5 and 7 pounds?

• Empirical rule

• TI-84 calculator

• Graphical method

• Z-score table

What is the probability that a newborn weighs between 5 and 7 pounds?

• 0.2335

• 0.5464

• 0.2623

• 0.6191

How many babies out of 500 are expected to weigh between 5 and 7 pounds?

• 131

• 273

• 310

• 117

What is the probability that a newborn weighs less than 6 pounds?

• 0.6191

• 0.5464

• 0.2623

• 0.2335

How many babies out of 500 are expected to weigh less than 6 pounds?

• 273

• 310

• 117

• 131

What is the probability that a newborn weighs more than 7.5 pounds?

• 0.6191

• 0.5464

• 0.2623

• 0.2335

How many babies out of 500 are expected to weigh more than 7.5 pounds?

• 131

• 117

• 273

• 310

What is the probability that a newborn weighs between 6 and 8 pounds?

• 0.6191

• 0.5464

• 0.2335

• 0.2623

How many babies out of 500 are expected to weigh between 6 and 8 pounds?

• 310

• 117

• 131

• 273