1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mafiozo [28]
2 years ago
7

Henry recorded how many pounds of fruits and vegetables his

Mathematics
2 answers:
Goryan [66]2 years ago
5 0

ok

uibciuendsjdddddddddddddddddddddddddddddddddddddddddddddddddddddddddfffffffffffffff

Rina8888 [55]2 years ago
5 0

Answer:

ok bbbbbnn bbbbbbbbbbbbb

You might be interested in
The sum of z and 7? What is it plz
wolverine [178]

Answer:

z + 7

Step-by-step explanation:

<u>Step 1:  Convert words into an expression</u>

The sum of z and 7

<em>z + 7</em>

<em />

Answer:  z + 7

<u>If needed solve:</u>

z + 7 - 7 = 0 - 7

<em>z = -7</em>

5 0
3 years ago
Read 2 more answers
Simplify the following fraction 15/35
notsponge [240]
Divide both sides by 5:
simplified = 3/7

Hope this helps!
8 0
3 years ago
Read 2 more answers
If you have 5 apples on 1 branch how many are there on 5 branches?
Fofino [41]

Answer: 25 apples

Step-by-step explanation: because 5 apples times 5 branches is 25

3 0
2 years ago
Read 2 more answers
g A psychic was tested for extrasensory perception (ESP). The psychic was presented with cards face down and asked to determine
diamong [38]

Answer:

Step-by-step explanation:

Hello!

The objective is to test ESP, for this, a psychic was presented with cards face down and asked to determine if each of the cards was one of four symbols: a star, cross, circle, square.

Be X: number of times the psychic identifies the symbols on the cards correctly is a size n sample.

p the probability that the psychic identified the symbol on the cards correctly

You have to calculate the sample size n to estimate the proportion with a confidence level of 95% and a margin of error of d=0.01

The CI for the population proportion is constructed "sample proportion" ± "margin of error" Symbolically:

p' ± Z_{1-\alpha /2} * (\sqrt{\frac{p'(1-p')}{n} } )

Where  d= Z_{1-\alpha /2} * (\sqrt{\frac{p'(1-p')}{n} } ) is the margin of error. As you can see, the formula contains the sample proportion (it is normally symbolized p-hat, in this explanation I'll continue to symbolize it p'), you have to do the following consideration:

Every time the psychic has to identify a card he can make two choices:

"Success" he identifies the card correctly

"Failure" he does not identify the card correctly

If we assume that each symbol has the same probability of being chosen at random P(star)=P(cross)=P(circle)=P(square)= 1/4= 0.25

Let's say, for example, that the card has the star symbol.

The probability of identifying it correctly will be P(success)= P(star)= 1/4= 0.25

And the probability of not identifying it correctly will be P(failure)= P(cross) + P(circle) + P(square)= 1/4 + 1/4 + 1/4= 3/4= 0.75

So for this experiment, we'll assume the "worst case scenario" and use p'= 1/4 as the estimated probability of the psychic identifying the symbol on the card correctly.

The value of Z will be Z_{1-\alpha /2}= Z_{0.975}= 1.96

Now using the formula you have to clear the sample size:

d= Z_{1-\alpha /2} * (\sqrt{\frac{p'(1-p')}{n} } )

\frac{d}{Z_{1-\alpha /2}} = \sqrt{\frac{p'(1-p')}{n} }

(\frac{d}{Z_{1-\alpha /2}})^2 =\frac{p'(1-p')}{n}

n*(\frac{d}{Z_{1-\alpha /2}})^2 = p'(1-p')

n = p'(1-p')*(\frac{Z_{1-\alpha /2}}{d})^2

n = (0.25*0.75)*(\frac{1.96}{0.01})^2= 7203

To estimate p with a margin of error of 0.01 and a 95% confidence level you have to take a sample of 7203 cards.

I hope this helps!

5 0
3 years ago
Read 2 more answers
What is the center of the circle whose diameter has endpoints (18, -13) and (4, -3)?
jeka94

Answer:

Step-by-step explanation:

The center of the circle whose diameter has endpoints (18, -13) and (4, -3) will be the midpoint of the coordinates.

The ormua for calculating mid point is expressed as;

M(X,Y) ={(x21+x2/2, y1+y2/2}

X= x1+x2/2

Y = y1+y2/2

From the coordinates

x1 = 18 x2 = 4

X= 18+4/2

X = 22/2

X = 11

y1= -13, y2= -3

Y = -3-13/2

Y = -16/2

Y = -8

Hence the required centre will be at (11,-8)

4 0
3 years ago
Read 2 more answers
Other questions:
  • a game room has a floor that is 120 feet by 75 feet. A scale drawing of the floor on grid paper uses a scale of 1 unit:5 feet. W
    6·1 answer
  • Please help me thank you​
    9·1 answer
  • 4. People in Japan on average eat 3 ounces of fish per day. How many pounds of fish is this per week?
    7·1 answer
  • HELPPPPPP MEEEEEEEEEEEE PLZZZZZZZZZZZZZ
    13·1 answer
  • What is log 1/36 divided by log 6
    5·1 answer
  • Find the IQR of the data set from the dot plot.
    5·1 answer
  • Original price: $80; Markdown: 36%
    8·2 answers
  • A zoo has 15 bears and 5 tigers.<br> The number of bears is how many times the number of tigers?
    15·2 answers
  • Find the length of side xx in simplest radical form with a rational denominator.
    12·1 answer
  • Please help i have a timer
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!