Sarah is testing the effect of pollution on plants. She has 50 tomato plants. 1 point
Group 1 contains 25 plants grown away from the source of pollution. The
other 25 plants, or group 2, grow in the presence of pollution. Sarah makes
sure all of the plants get the same amount of water, sunlight exposure, and
fertilizer. For 1 month, she observe the plants weekly. Her observations
include how the plants look and changes in plant height. Sarah's data
shows that plants in the experimental group all had stunted growth (short)
and poor leaf color (yellow). What is the independent variable? *
Pollution
Sunlight
Fertilizer
Answers: 3
Biology, 21.06.2019 17:00
In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence:
Answers: 1
Biology, 21.06.2019 19:30
Place the steps tor the formation of the enzyme pepsinogen in correct order
Answers: 1
Biology, 21.06.2019 20:10
Photosynthesis converts solar energy into what type of energy?
Answers: 3
Biology, 22.06.2019 03:00
Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .
Answers: 1
Sarah is testing the effect of pollution on plants. She has 50 tomato plants. 1 point
Group 1 cont...
English, 13.12.2021 14:10
English, 13.12.2021 14:10
Mathematics, 13.12.2021 14:10
Physics, 13.12.2021 14:10
Chemistry, 13.12.2021 14:20
History, 13.12.2021 14:20
Chemistry, 13.12.2021 14:20
Business, 13.12.2021 14:20
Mathematics, 13.12.2021 14:20
Mathematics, 13.12.2021 14:20
Chemistry, 13.12.2021 14:20
History, 13.12.2021 14:30
Engineering, 13.12.2021 14:30