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
Mkey [24]
3 years ago
8

Greg has four different colored cards in a box. Yellow, red, blue, and green. He randomly selects one card, records the color, a

nd then replaces the card into the box. If Greg does this 300 times, how many yellow cards should he expect to select?
Mathematics
1 answer:
Veronika [31]3 years ago
6 0

Answer:

He should expect to select 75 yellow cards.

Step-by-step explanation:

Since there is replacement, for each trial, we have:

1 yellow card

1 red card

1 blue card

1 green card.

If Greg does this 300 times, how many yellow cards should he expect to select?

Each trial, there are 4 cards, one of which is yellow. So 1/4 = 0.25 probability of selecting a yellow card.

Over 300 trials

0.25*300 = 75

He should expect to select 75 yellow cards.

You might be interested in
A plane cuts through a cone parallel to its base. what shape is it now.
Lapatulllka [165]

Answer:

When the plane cuts the cone at an angle between a perpendicular to the axis (which would produce a circle) and an angle parallel to the side of the cone (which would produce a parabola), the curve formed is an ellipse.

Step-by-step explanation:

MARK ME BRAINLIEST PLEASEEE I ONLY NEED 2 MORE FOR RANK VIRTUSSO

7 0
2 years ago
Write each polynomial function in standard form , classify it by degree and determine the end behavior of its graph Y=12-x^4
Dmitry_Shevchenko [17]
In standard form, zero is always on the right:
y = 12 - x^4
y + x^4 - 12 = 0 

End behavior: 
As x approaches ∞, y approaches -∞
As x approaches -∞, t approaches -∞
4 0
3 years ago
In a sample of 57 temperature readings taken from the freezer of a restaurant, the mean is 29.6 degrees and the population stand
Natalka [10]

Answer:

(29.14 ; 30.06)

Step-by-step explanation:

Given that'

Sample size (n) = 57

Mean (m) = 29.6

Population standard deviation (σ) = 2.7

Confidence interval = 80%

= (1 - 0.8) / 2 = 0.1

Mean ± z * σ/√n

Using the Z probability calculator : Z0. 1 = 1.28

Hence,

29.6 ± 1.28 * (2.7 / √57)

29.6 - (1.28 * 0.3576237) ; 29.6 + (1.28 * 0.3576237)

29.142241664 ; 30.057758336

(29.14 ; 30.06)

8 0
3 years ago
Dude is making 12 pounds of nut mixture with macadamia nuts and almonds. Macadamia nuts cost $9 per pound and almonds cost $5.25
pshichka [43]

Number of pounds of macadamia nuts is 8 pounds and number of pounds of almonds is 4 pounds.

<u>Step-by-step explanation:</u>

Step 1:

Given total pounds of mixture = 12 pounds, cost of macadamia nuts per pound = $9, cost of almonds per pound = $5.25, total cost of mixture per pound = $7.75.

Let number of pounds of macadamia nuts be x and number of pounds of almonds be 12-x.

Step 2:

Form an equation using the above information.

⇒ 9x + 5.25 (12-x) = 12 × 7.75

⇒ 9x + 63 - 5.25x = 93

⇒ 9x - 5.25x = 30

⇒ 3.75x = 30

⇒ x = 8

Number of macadamia nuts is 8 pounds.

Step 3:

Calculate number pounds of almonds

⇒ Number of pounds of almonds = 12 - x = 4 pounds.

5 0
3 years ago
Jason consumes 1500 calories and needs to
Lubov Fominskaja [6]

Answer:

100*150=15000 calories

Step-by-step explanation:

100 times 150 is 15000 because you are multipling 2 people

I don't know if it is correct

just check and if it isn't then check some one elses work.

6 0
3 years ago
Other questions:
  • I am not sure how to do this diamond problem
    12·2 answers
  • What is organic fertilizer?​
    9·1 answer
  • Given a normal distribution with a mean of 128 and a standard deviation of 15, what percentage of values is with an interval 83
    12·1 answer
  • How is this wrong? I cant find it out, google says it is -7 but why?
    6·2 answers
  • hank cut a cake into 12 equal pieces and ate 2 pieces. he has 10/12 of the cake left to serve on plates. what part of the cake d
    7·2 answers
  • The diameter of the handle of a softball bat
    15·1 answer
  • What multiplies to be -18 and adds to be -9?
    8·1 answer
  • Please help if your right ill rate you 5 stars and Brainiest!
    13·2 answers
  • I need the answer. Plzzzzzz
    11·2 answers
  • Translate the phrase into an algebraic expression The sum of 7 and c​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!