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3 years ago

I can't see these pictures so write them in numbers

Mathematics

2 answers:

snow_lady [41]3 years ago

6 0

OMG YES JUST WRIGHT IT IF U CAN!!!

RideAnS [48]3 years ago

5 0

So uhh what is your question?

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A group of 20 students in four adults are going on a field trip to the museum What is the ratio of students to adults complete t

stepladder [879]

Answer:

5:1

Step-by-step explanation:

Originally the ratio is 20:4

but then it is simplified to 10:2

then 5:1

6 0

2 years ago

15 POINTS HELP ME PLEASE!!!

mars1129 [50]

Answer:

-13a -8

9x+4

Step-by-step explanation:

-8a + (-6)- 10a - 2 + 5a

-8a -10a +5a -6-2

Combine like terms

-18a +5a -8

-13a -8

6x - 4 + 3x + 8

6x+3x -4+8

Combine like terms

9x+4

4 0

3 years ago

Read 2 more answers

Give the numerical value of the parameter p in the following binomial distribution scenarioA softball pitcher has a 0.721 probab

Igoryamba

Answer:

$P(X>15)= P(X=16)+P(X=17)+P(X=18)+P(X=19)$

$P(X=16)=(19C16)(0.721)^{16} (1-0.721)^{19-16}=0.112$

$P(X=17)=(19C17)(0.721)^{17} (1-0.721)^{19-17}=0.051$

$P(X=18)=(19C18)(0.721)^{18} (1-0.721)^{19-18}=0.015$

$P(X=19)=(19C19)(0.721)^{19} (1-0.721)^{19-19}=0.002$

And replacing we got:

$P(X>15)= P(X=16)+P(X=17)+P(X=18)+P(X=19) =0.112+0.051+0.015+0.002= 0.1801$

Step-by-step explanation:

Previous concepts

A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

The probability mass function for the Binomial distribution is given as:

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

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

Solution to the problem

For this case our random variable is given by:

$X \sim Binom(n = 19, p = 0.721)$

For this case we want this probability:

$P(X>15)= P(X=16)+P(X=17)+P(X=18)+P(X=19)$

$P(X=16)=(19C16)(0.721)^{16} (1-0.721)^{19-16}=0.112$

$P(X=17)=(19C17)(0.721)^{17} (1-0.721)^{19-17}=0.051$

$P(X=18)=(19C18)(0.721)^{18} (1-0.721)^{19-18}=0.015$

$P(X=19)=(19C19)(0.721)^{19} (1-0.721)^{19-19}=0.002$

And replacing we got:

$P(X>15)= P(X=16)+P(X=17)+P(X=18)+P(X=19) =0.112+0.051+0.015+0.002= 0.1801$

$P(X> 2)=1-P(X\leq 2)=1-[0.0211+0.0995+0.211]=0.668$

3 0

4 years ago

A woman said to her to her son ," I was as old as you are now at the time of your birth". If the woman is 56 years old now, find

grigory [225]

Answer:

he son was 19

Step-by-step explanation:

if the son is the same age as his mom was when she gave birth to him you must divide the mothers ageby 2 so you get half her age which would be 28 then you subtract 9 and you get 19

56/2=28

28-9=19

3 0

3 years ago

Read 2 more answers

What is the rate of change for the equation y = 0.860x + 3.302.?

dimaraw [331]

The rate of change is 0.860.

7 0

4 years ago

Read 2 more answers