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makvit [3.9K]
2 years ago
7

What is the median age

Mathematics
1 answer:
jeka57 [31]2 years ago
3 0
Median age is the age that divides a population into two numerically equally sized groups - that is, half the people are younger than this age and half are older. It is a single index that summarizes the age distribution of a population.
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Anna put $500 into a savings account and made no more deposits or withdrawals. The account earns 2% simple interest per year. Ho
castortr0y [4]

Answer:

$552.04

Step-by-step explanation:

Lauren, use the compound amount formula:  A = P(1 + r)^n.

Here P is the principal and is $500; r is the annual interest rate as a decimal fraction, and n is the number of years.

After 5 years, Anna will have:  $500(1 + 0.02)^5  =  $552.04

4 0
3 years ago
identify an equation in point slope form for the line perpedicular to y=1/4x-7 that passes through (-2,-6)​
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Answer:

perp. -4

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3 years ago
Choose the longer measurement <br>14 inches 1 foot​
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Answer:

tue

Step-by-step explanation:

8 0
3 years ago
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The amount of time that a customer spends waiting at an airport check-in counter is a random variable with mean 8.0 minutes and
strojnjashka [21]

Answer:

P ( 5 < X < 10 ) = 1

Step-by-step explanation:

Given:-

- Sample size n = 49

- The sample mean u = 8.0 mins

- The sample standard deviation s = 1.3 mins

Find:-

Find the probability that the average time waiting in line for these customers is between 5 and 10 minutes.

Solution:-

- We will assume that the random variable follows a normal distribution with, then its given that the sample also exhibits normality. The population distribution can be expressed as:

                                   X ~ N ( u , s /√n )

Where

                            s /√n = 1.3 / √49 = 0.2143

- The required probability is P ( 5 < X < 10 ) minutes. The standardized values are:

                        P ( 5 < X < 10 ) = P (    (5 - 8) / 0.2143 <  Z  <  (10-8) / 0.2143   )

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- Using standard Z-table we have:

                        P ( 5 < X < 10 ) = P ( -14.93 < Z < 8.4 ) = 1        

7 0
3 years ago
Guided Practice
irga5000 [103]
It’s choice A! :) y= -x - 6
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3 years ago
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