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
Darina [25.2K]
3 years ago
11

Jacquie used an app to simulate a coin flip 400 times. It lands on heads 222 times. Based on her results, Jacquie predicts that

the expected number of times the coin will land on heads in 10,000 trials is 5,000 times. Do you think Jacquie's expected results are correct? Explain your reasoning.
Mathematics
1 answer:
vlabodo [156]3 years ago
5 0

Answer: No

Step-by-step explanation: If flipped 400 times and 222 times are heads, then there is a 55.5% chance it will be heads. If flipped 10,000 times, then there should be 5550 heads.

You might be interested in
A car advertisement claims that a certain car can accelerate from rest to 70 km/hr in 7 seconds find the car acceleration
iVinArrow [24]

Answer:

acceleration \approx 2.78\,\,\frac{m}{s^2}

Step-by-step explanation:

The acceleration is the change in velocity per unit of time.

Therefore to have this rate in appropriate units that can combine, we re-write the change from 0 to 70 km/h in meters per second using:

70 \frac{km}{h} = \frac{70000}{3600} \frac{m}{s}

so in this case the acceleration becomes:

accel=\frac{change\,\,vel}{change\,\,time} =\frac{70000m}{3600\,*7\,s^2} \approx 2.78\,\,\frac{m}{s^2}

7 0
3 years ago
tina saved 25 more dimes than nickels. she saved 6 times as many dimes as nickels. how much money did she save in all
nikklg [1K]
25 ÷ (6 - 1) = 25 ÷ 5 = 5, she saved 5 nickels,

5 nickels = 5 × 5 = 25 cents = $0.25

5 + 25 = 30, she saved 30 dimes, 30 dimes = 300 cents = 3 dollars.

3 + 0.25 = $3.25, she saved $3.25 in all.
4 0
3 years ago
Read 2 more answers
Please help me ! Today 11/6/2020 :(
dangina [55]
I believe the answer is c, TSR
5 0
3 years ago
The equation that models the relationship between the wavelength and frequency of yellow light is:
natima [27]

Answer:

xy= 302,400

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The area of a rectangle with 2 1/2 as the width and 10 feet as the length
Tanya [424]
The formula for the area of a rectangle is:
A=wl
w = width
l = length

First, we have to convert 2 \frac{1}{2} into an improper fraction, then into a number. The improper fraction would be \frac{5}{2}. Let's convert that into a decimal.
5/2=2.5

Let's multiply
2.5*10=25
The area of the rectangle would be 25 feet!
7 0
3 years ago
Other questions:
  • In the measurement 0.503 l, which digit is the estimated digit? the 0 immediately to the left of the 3 5 the 0 to the left of th
    13·2 answers
  • Let z denote a random variable that has a standard normal distribution. Determine each of the probabilities below. (Round all an
    9·1 answer
  • Which of the following best represents √39?
    13·2 answers
  • Given the transformation XYZ - X’Y’Z name the preimage of the transformation
    6·1 answer
  • What is the constant of proportionality of the relationship shown in the graph?
    9·2 answers
  • We have two fair three-sided dice, indexed by i = 1, 2. Each die has sides labeled 1, 2, and 3. We roll the two dice independent
    12·1 answer
  • Ms. Williams purchased 8 computer chargers for $446. At this rate, what is the cost of 11
    5·1 answer
  • The graph of the linear function k passes through points (-7,0) and ((1,8)
    9·1 answer
  • I WILL give brainliest promise
    11·1 answer
  • Two bicyclists were racing toward each other when they were 98 miles apart. Three hours later they did not meet yet and the dist
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!