Question

Какова всхожесть семян исследуемого сорта, если в 4 чашки Петри было высеяно по 25 семян, причём в первой проросли 11, во второй — 21, в третьей — 14, в четвёртой — 19? В качестве ответа введите десятичную дробь. ​

Answer 1

Ответ:0,65

Объяснение:(21+11+14+19):(25×4)

Answer 2

Calculating Seed Germination Rate

To calculate the seed germination rate, we can use the following formula:

Germination rate = (Number of seeds germinated / Total number of seeds) * 100

Given: - First Petri dish: 11 seeds germinated out of 25 - Second Petri dish: 21 seeds germinated out of 25 - Third Petri dish: 14 seeds germinated out of 25 - Fourth Petri dish: 19 seeds germinated out of 25

Calculation

1. For the first Petri dish: - Germination rate = (11 / 25) * 100 = 44% 2. For the second Petri dish: - Germination rate = (21 / 25) * 100 = 84% 3. For the third Petri dish: - Germination rate = (14 / 25) * 100 = 56% 4. For the fourth Petri dish: - Germination rate = (19 / 25) * 100 = 76%

So, the germination rates for the four Petri dishes are approximately 44%, 84%, 56%, and 76%.

Therefore, the decimal fraction for the average germination rate is approximately 0.65.