3 years ago

What is the unit cost of seven oranges for $2.80

1 answer:

6 0

Answer:$19.60

Step-by-step explanation: All you have to do is get 2.80 and times it by 7

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Vinil7 [7]

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strojnjashka [21]

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Assoli18 [71]

Answer: 0.9987

Step-by-step explanation:

Given : The weights of newborn babies are distributed normally, with a mean of approximately 105 oz and a standard deviation of 10 oz.

i.e. $\mu=105\ oz$ and $\sigma= 10\ oz$

Let x represents the weights of newborn babies.

If a newborn baby is selected at random, then the probability that the baby weighs more than 75 oz will be :-

$P(x>75)=P(\dfrac{x-\mu}{\sigma}>\dfrac{75-105}{10})\\\\ =P(z>-3 )=P(z-z)=P(Z$

$=0.9987$ [using z-value table]

Hence, the required probability = 0.9987

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3 years ago