Sales prices of baseball cards from the 1960's are known to possess a skewed-right distribution with a mean sale price of $5.25 and a standard deviation of $2.80. suppose a random sample of 100 cards from the 1960's is selected. describe the sampling distribution for the sample mean sale price of the selected cards. Question solved general 11 months ago 9499
F. if a 2 x 6 (which means the actual dimensions of the board are 1.5 in. x 5.5 in.) milled from the same wood (and therefore has the same density) weighs 3.2 lb, how long is the board? Question solved general 11 months ago 7636
A random sample of 30 households was selected from a particular neighborhood. the number of cars for each household is shown below. estimate the mean number of cars per household for the population of households in this neighborhood. give the 95% confidence interval.a. 1.14 to 1.88b. 1.12 to 1.88c. 1.12 to 1.98d. 1.14 to 1.98 Question solved general 11 months ago 3761
Each triangle is a 30-60-90 triangle, and the hypotenuse of one triangle is the longer leg of an adjacent triangle. the hypotenuse of the largest triangle is 8 centimeters. what is the number of centimeters in the length of the longer leg of the smallest triangle? express your answer as a common fraction. Question solved general 11 months ago 6014
Joe dealt 20 cards from a standard 52-card deck, and the number of red cards exceeded the number of black cards by 8. he reshuffled the cards and dealt 30 cards. this time, the number of red cards exceeded the number of black cards by 10. determine which deal is closer to the 50/50 ratio of red/black expected of fairly dealt hands from a fair deck and why.a. the first series is closer because 1/10 is farther from 1/2 than is 1/8.b. the series closer to the theoretical 50/50 cannot be determined unless the number of red and black cards for each deal is given.c. the second series is closer because 20/30 is closer to 1/2 than is 14/20.d. the first series is closer because the difference between red and black is smaller than the difference in the second series. Question solved general 11 months ago 3563
If limit as x approaches a of f of x equals four and limit as x approaches a of g of x equals three, then limit as x approaches a of the quantity three times f of x squared minus four times g of x equals tentrue false Question solved general 11 months ago 8351
Erica and Amy started biking in the opposite directions at the same time from the same place. Erica biked at a speed of 6 meters per second and Amy biked at a speed of 4 meters per second. How soon were they exactly 1 km apart? Question solved general 11 months ago 7911
Could 2.8 cm, 4.0 cm, and 2.8 cm be the side lenghts of a triangle? Question solved general 11 months ago 6560
Point A is located at (5, 10) and point B is located at (20, 25).What point partitions the directed line segment AB into a 3:7 ratio?(9 1/2, 14 1/2)(9 1/2, 20 1/2)(15 1/2, 14 1/2)(15 1/2, 20 1/2) Question solved general 11 months ago 7910
erika drove 280 miles in 5.5 hours. She averaged 40 miles per hour driving through towns and cities . She averaged 55 miles per hour driving on the highway. How many hours did Erika drive on the highway? Question solved general 11 months ago 5374
Each face of a pyramid is an isosceles triangle with a 76 degree vertex angle. What are the measures of the base angles? Question solved general 11 months ago 9077
What are the coordinates of the circumcenter of a triangle with vertices A(−1, 1) , B(5, 1) , and C(−1, −1) ? Enter your answer in the boxes. Question solved general 11 months ago 3509
Determine if the Mean Value Theorem for Integrals applies to the function f(x) = 5 − x2 on the interval the closed interval from 0 to the square root of 5. If so, find the x-coordinates of the point(s) guaranteed by the theorem. No, the Mean Value Theorem for Integrals does not apply Yes, x equals 10 thirds Yes, x equals the quotient of square root of 5 and 3 Yes, x equals the quotient of the square root of 15 and 3 Question solved general 11 months ago 3929
Use the expression 34-12 divided by 2+7 place parentheses in the expression so that the value of the expression is 18 Question solved general 11 months ago 4990
A personal trainer designs exercise plans based on a combination of strength-training and aerobic exercise. A beginner plan has 15 minutes per session of strength-training and 20 minutes per session of aerobic exercise for a total of 90 minutes of exercise in a week. An advanced plan has 20 minutes per session of strength-training and 30 minutes of aerobic exercise for a total of 130 minutes of exercise in a week. Which statement describes when the plans are based on the same number of aerobic exercise sessions? Each plan utilizes a combination of 2 strength-training sessions and 2 aerobic exercise sessions per week. Each plan utilizes a combination of 2 strength-training sessions and 3 aerobic exercise sessions per week. Each plan utilizes a combination of 3 strength-training sessions and 2 aerobic exercise sessions per week. Each plan utilizes a combination of 3 strength-training sessions and 3 aerobic exercise sessions per week. Question solved general 11 months ago 6393
There are approximately 330,000,000 cubic miles of water on Earth. A cubic mile is approximately 147,200,000,000 cubic feet. How much water is on Earth? Estimate using scientific notation. Question solved general 11 months ago 7086
Andrew and John are both Beatles fans. Their respective collections share nine of the same albums. Andrew has seventeen albums in his collection. Six albums are in John's collection, but not Andrew's. How many albums are in either Andrew's or John's collection, but not both? Question solved general 11 months ago 4500