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3 years ago

Are these right and can u help with number 4

Mathematics

2 answers:

ryzh [129]3 years ago

7 0

#2 is incorrect

Add 3.84+1.92
That will give you your answer for #2

alexdok [17]3 years ago

3 0

7/4th s should be the answer sorry if i,m wrong

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Tom has 72 baseball cards this is a times as many cards as Mary has how many baseball cards does Mary have

sp2606 [1]

Mary has 36 baseball cards :)

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3 years ago

Please Help!

enot [183]

A
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3 years ago

Twenty-six , 2 tens 6 ones , 25, 20+6 which one is the odd one out?

Aneli [31]

Answer:

Step-by-step explanation:

twenty-six=26

2 tens 6 ones= 26

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8 0

3 years ago

1. The probability of telesales representative making a sale on a customer call is 0.15.

Mumz [18]

Answer:

$n = 33$

$n = 19$

Step-by-step explanation:

From the question we are told that

The probability of telesales representative making a sale on a customer call is $p = 0.15$

The mean is $\mu = 5$

Generally the distribution of sales call made by a telesales representative follows a binomial distribution

i.e

$X \~ \ \ \ B(n , p)$

and the probability distribution function for binomial distribution is

$P(X = x) = ^{n}C_x * p^x * (1- p)^{n-x}$

Here C stands for combination hence we are going to be making use of the combination function in our calculators

Generally the mean is mathematically represented as

$\mu = n* p$

=> $5= n * 0.15$

=> $n = 33$

Generally the least number of calls that need to be made by a representative for the probability of at least 1 sale to exceed 0.95 is mathematically represented as

$P( X \ge 1) = 1 - P( X < 1 ) > 0.95$

=> $P( X \ge 1) = 1 - P( X =0 ) > 0.95$

=> $P( X \ge 1) = 1 - [ ^{n}C_0 * (0.15 )^0 * (1- 0.15)^{n-0}] > 0.95$

=> $1 - [1 * 1* (0.85)^{n}] > 0.95$

=> $[(0.85)^{n}] > 0.05$

taking natural log of both sides

$n = \frac{ln(0.05)}{ln(0.85)}$

=> $n = 19$

3 0

2 years ago

Nata [24]

Answer:

I tried looking it up, and i found 15 square units. sorry if its wrong :(

Step-by-step explanation:

4 0

3 years ago

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