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
erik [133]
4 years ago
14

Seed are often treated with fungicides to protect them in poor draining, wet environments. A small-scale trial, involving five t

reated and five untreated seeds, was conducted prior to a large-scale experiment to explore how much fungicide to apply. The seeds were planted in wet soil, and the number of emerging plants were counted. If the solution was not effective and four plants actually sprouted, what is the probability that : a) all four plants emerged from treated seeds? b) three or fewer emerged from treated seeds? c) at least one emerged from untreated seeds?
Mathematics
1 answer:
love history [14]4 years ago
8 0

Answer:

c

Step-by-step explanation:

You might be interested in
How do you do this? I have no idea
Helga [31]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
A cube has a surface area of 486 square meters. What is the volume of the cube.
Oksana_A [137]
V= s^3  
a=486/6=81
s=sqrt(81)=9
v=9^3=729
the volume of the cube is 729cm^3
8 0
3 years ago
Read 2 more answers
An orange juice producer buys oranges from a large orange grove that has one variety of orange. The amount of juice squeezed fro
strojnjashka [21]

Answer:

a) 0.10565

b) The two values = 4.61712 and

4.78288

c) 4.64088

Step-by-step explanation:

The z score formula we use to solve when given a random number of samples=

The formula for calculating a z-score is is z = (x-μ)/σ/√n

where x is the raw score

μ is the population mean

σ/√n is standard error

σ is the population standard deviation

n = random number of samples

a. What is the probability that the sample mean amount of juice will be at least 4.60 ounces?

z = (x-μ)/σ/√n

x = 4.60

μ = 4.70

σ = 0.40

n = 25

z = 4.60 - 4.70/0.40/√25

z = -0.10/0.40/5

z = -1.25

P-value from Z-Table:

P(x ≤ 4.60)

= P(x ≤ 4.60)

= P(z = -1.25)

= 0.10565

Therefore, the probability that the sample mean amount of juice will be at least 4.60 ounces is 0.10565

b. The probability is 70% that the sample mean amount of juice will be contained between what two values symmetrically distributed around the population mean?

The probability of 70% = 0.70

The z score for 0.70 = 1.036

This means, -1.036 and +1.036 gives a probability (0.70) or confidence level of 70%

We are to find x(raw score)

We solve using z score formula

For z = +1.036

z = (x-μ)/σ/√n

x = ?

μ = 4.70

σ = 0.40

n = 25

1.036 = x - 4.70/0.40/√25

1.036 = x - 4.70/0.08

Cross Multiply

1.036 × 0.08 = x - 4.70

0.08288 = x - 4.70

0.08288 + 4.70 = x

x = 4.78288

For z = -1.036

z = (x-μ)/σ/√n

x = ?

μ = 4.70

σ = 0.40

n = 25

-1.036 = x - 4.70/0.40/√25

-1.036 = x - 4.70/0.08

Cross Multiply

-1.036 × 0.08 = x - 4.70

-0.08288 = x - 4.70

-0.08288 + 4.70 = x

= 4.61712

Therefore, the two values = 4.61712 and

4.78288

c. The probability is 77% that the sample mean amount of juice will be greater than what value?

We are told to find the value that the sample mean is greater than

The z score for a P(x > z)

= P(x > 0.77)

= -0.739

Using z score formula, we find x first

z = (x-μ)/σ/√n

x = ?

μ = 4.70

σ = 0.40

n = 25

-0.739 = x - 4.70/0.40/√25

-0.739 = x - 4.70/0.08

Cross Multiply

-0.739 × 0.08 = x - 4.70

-0.05912 = x - 4.70

-0.05912 + 4.70 = x

x = 4.64088

Therefore, the value that the probability is 77% that the sample mean amount of juice will be greater than is 4.64088

5 0
4 years ago
Select the equations of the lines that are parallel to the line whose equation is y = 3x + 5. There might be more than one answe
o-na [289]
Parallel means they have the same slope.
The given equation has a slope of 3. Slope intercept equation: y = mx + b
a. 6x + 2y = 12
Subtract 6x from both sides.
2y = - 6x + 12
Divide both sides by 2.
y = -3x + 6 Not parallel

b. -3x + y = 8
Add 3x to both sides.
y = 3x + 8 Parallel

c. 3y = 9x
Divide both sides by 3
y = 3x Parallel

d. y = -1/3x Not parallel

B and C are parallel
6 0
3 years ago
The fact that financial services are more plentiful and easier to access means that
Virty [35]
<span> Not 100% sure but I think it is: consumers need to be better informed about what services are available and what those services cost.</span>
8 0
3 years ago
Other questions:
  • Which equation has a graph perpendicular to the graph 7x=14y-8
    7·1 answer
  • Need help asap thanks y'all
    10·2 answers
  • How do you find the area of a 3d shape
    13·1 answer
  • Help, Find value of x
    8·2 answers
  • Graph f(x) = 5x - 45
    9·2 answers
  • The population of the African country Uganda has been growing at a steady rate for several decades. Assuming that the current po
    14·2 answers
  • Find the slope of the line through the pair of points.<br><br> N(–9, 4), P(–8, 2)
    5·2 answers
  • OKAY I'M RE-ASKING BECAUSE I STILL DON'T UNDERSTAND
    14·1 answer
  • For questions 1-4 The spinner to the left is spun 100 times.
    12·1 answer
  • each of the 20 balls is tossed independently and at random into one of the 5 bins. let p be the probability that some bin ends u
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!