A population has the following characteristics. (a) A total of 25% of the population survives the first year. Of that 25%, 75% survives the second year. The maximum life span is 3 years. (b) The average number of offspring for each member of the population is 2 the first year, 3 the second year, and 2 the third year. The population now consists of 144 members in each of the three age classes. How many members will there be in each age class in 1 year? O s age s 1 | * 1 s age s 2 2 s age s 3 In 2 years? O s age s1 1 s age s 2 2 s age s 3

Terrariums are self-contained ecosystems inside a closed container. A local farmer produces terrariums for sale, but must wait for the plants in the terrarium to grow before she can sell them.  On average, her terrariums take 30 days before they are ready to sell. She experiments with a new soil mixture, aiming to decrease the time it takes for the terrariums to be ready. In a sample of 12 terrariums with the new soil mixture, the farmer finds that the average time before they are ready is 21 days with a standard deviation of 3 days. in testing the hypotheses H0​:μ= 30 and Ha​:μ< 30, what is the value of the tt-test statistic? Round your answer to three decimal places.

Population Movement   In 2008 the population of a country, broken down by regions, was 54.3 million in the Northeast, 65.1 million in the Midwest, 112.4 million in the South, and 70.2 million in the West. The table below shows the population movement during the period 2008–2009. (Thus, 99.23% of the population in the Northeast stayed there, while 0.16% of the population in the Northeast moved to the Midwest, and so on.) To Northeast Midwest South West From Northeast 0.9923 0.0016 0.0042 0.0019 Midwest 0.0018 0.9896 0.0047 0.0039 South 0.0056 0.0059 0.9827 0.0058 West 0.0024 0.0033 0.0044 0.9899 Set up the 2008 population figures (in millions) as a row vector.                             Use matrix multiplication to estimate the population in each region in 2009. (Round all answers to the nearest 0.1 million.) Northeast  million peopleMidwest million peopleSouth million peopleWest million people

A clinical test on humans of a new drug is normally done in three phases. Phase I is conducted with a relatively small number of healthy volunteers. For​ example, a phase I test of a specific drug involved only 88 subjects. Assume that we want to treat 88 healthy humans with this new drug and we have 1212 suitable volunteers available. Complete parts​ (a) through​ (c) below. a. If the subjects are selected and treated in​ sequence, so that the trial is discontinued if anyone displays adverse​ effects, how many different sequential arrangements are possible if 88 people are selected from the 1212 that are​ available? Choose the correct answer below.     A. 19 comma 958 comma 40019,958,400   B. 40 comma 32040,320   C. 479 comma 001 comma 600479,001,600   D. 495495 b. If 88 subjects are selected from the 1212 that are​ available, and the 88 selected subjects are all treated at the same​ time, how many different treatment groups are​ possible?   There are…

StarHortons Cup, the coffee company, wants to determine how long caffeine lasts throughout the day when individuals have a cup of one of their 3 types of coffee at 9am. They will then measure the levels of caffeine in these individuals’ systems at 10am, 12am, 2pm, 4pm, 6pm and 8pm. They want to have at least 20 observations per group. How many separate/distinct groups of participants are needed if they want to conduct this experiment using a mixed-measures ANOVA?   18 6 20 3

Salma is studying the growth of a particular type of plant. She is testing the effects of four growth factors: lighting, age, temperature, and humidity. Here are the levels she's testing for each. Levels None, Low, Medium, High, Very high 1 month, 2 months, 3 months 20 °C, 22 °C, 24 °C Low, Medium, High She wants to find the number of ways of combining one level from each of the growth factors. How many ways are there? 0 Growth factor Lighting Age Temperature Humidity x

Individual Membership Type Membership Charges per year,S Friends of Bird Park 39 Friends of River Safari 65 Friends of Singapore Zoo 105 Friends of Night Safari 105 Friends of Wildlife 145 Friends of Wildlife Plus 205 Of all the individuals who have taken up the annual membership, 20% hold Friends of Bird Park membership, 10% hold Friends of River Safari membership, 15% hold Friends of Singapore Zoo membership, 25% hold Friends of Night Safari membership, 10% hold Friends of Wildlife membership and 20% hold Friends of Wildlife Plus membership. Assume no individual can hold more than one type of membership. If a random sample of 30 members is selected, the distribution of the annual membership charges does NOT follow an approximately normal distribution. True O False

) 3 2010 06 36% Progress Camila and Evelyn work at a dry cleaners ironing shirts. Camila can iron 40 shirts per hour, and Evelyn can iron 20 shirts per hour. How many total shirts would be ironed between the two workers if Camila worked 6 hours and Evelyn worked 9 hours on a given day? How many total shirts would be ironed between the two workers if Camila worked a hours and Evelyn worked y hours on a given day? Camila works 6 hours and Evelyn works 9 hours: I ACaila works a hours and Evelyn works y hours: Submit Answer attempt i out of 2 Privacy Policy Terms of Service Copyright 2021 DeltaMath.com. All Rights Reserved DELL 女 23 2$ & 2 4. 5 6 7 8. b. W e y i a S f k

Population Movement   In 2008 the population of a country, broken down by regions, was 54.2 million in the Northeast, 65.1 million in the Midwest, 112.5 million in the South, and 70.2 million in the West. The table below shows the population movement during the period 2008–2009. (Thus, 99.23% of the population in the Northeast stayed there, while 0.16% of the population in the Northeast moved to the Midwest, and so on.) To Northeast Midwest South West Northeast 0.9923 0.0016 0.0042 0.0019   Midwest 0.0018 0.9896 0.0047 0.0039 South 0.0056 0.0059 0.9827 0.0058 West 0.0024 0.0033 0.0044 0.9899     Use matrix multiplication to estimate the population in each region in 2009. (Round all answers to the nearest 0.1 million.)

The table shows the leading causes of death in a certain country in a recent year. The population of the country was 311311 million. If you lived in a typical city of​ 500,000, how many people would you expect to die of cancercancer each​ year?             Cause Deaths   Cause Deaths   Heart disease 596 comma 700596,700   ​ Alzheimer's disease 84 comma 90084,900   Cancer 575 comma 300575,300   Diabetes 73 comma 40073,400   Chronic respiratory diseases 143 comma 100143,100   ​ Pneumonia/Influenza 53 comma 40053,400   Stroke 128 comma 600128,600   Kidney disease 45 comma 30045,300   Accidents 122 comma 500122,500   Suicide 38 comma 60038,600   About people would be expected to die of cancer each year. ​(Type a whole number. Round to the nearest person as​ needed.)