Which number is 7.323 rounded to the nearest tenth? a 7.3 6 74 © 7.32 07.33

Option A - 7.3.

Step-by-step explanation:

Given : Number 7.323.

To find : Which number is 7.323 rounded to the nearest tenth?

Solution :

Rounded to the nearest tenth rule :

1) If the hundredths place of a decimal is greater than or equal to five, then tenth place number is added by 1.

2) If the hundredths place of a decimal is less than five, then tenth place number does not change.

In the number 7.323

The Hundredth number is 2 < 5 so tenth number does not change.

7.323 rounded to the nearest tenth is 7.3.

Therefore, Option A is correct.

56

step-by-step explanation:

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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